Estimated reading time: 8 minutes

When planning a child, expectant mothers are interested in all the nuances of pregnancy and, most importantly, the first signs of its onset. The state of a woman’s body can be indicated by basal temperature (BT), the indicators of which change throughout the menstrual cycle, as well as in the case of successful conception.

Every modern girl should be able to correctly measure temperature and build a convenient chart that allows you to visually track changes in the body before conception, as well as the next 2 weeks after.

You might be interested in: Signs of pregnancy in the first days: first symptoms and sensations

Basal temperature and features of its measurement

The thermometer, carefully placed by the doctor in armpit, reliably shows changes in skin temperature, which helps to talk about the presence of inflammatory processes or disease. However, temperature indicators inside the body different organs and areas will differ (so most precise measurements produced in the oral cavity).

Basal (rectal) temperature is measured in the woman’s rectum, subject to strict rules. The obtained indicators help to diagnose changes in hormonal levels, as well as determine favorable period ovulation. Such measurements are used by patients who are trying to conceive a baby and want to guess the most suitable day for this. The obtained indicators allow you to build a schedule for the coming months and identify which days are favorable for “attempts”. The absence of ovulation according to the schedule is a reason to contact an endocrinologist or gynecologist.

How to correctly measure basal temperature during pregnancy?

• All measurements are taken on an empty stomach and only after waking up in the morning. To do this, stay in supine position(you can’t get up, go to the toilet, etc.).
• Every day the temperature is measured at the same time (the permissible difference is no more than half an hour).
• Apply baby cream or Vaseline around the tip of the thermometer and the anus to facilitate penetration and reduce the risk of damage to the delicate area and mucous membranes.
• The thermometer should be inserted to a depth of about 20-30 mm.
• Hold the device in the rectum for about 6-7 minutes.
• Immediately after removing the device, take and record the indicators and enter them into the chart.
• Mark in the calendar-graph factors that could distort the indicators, for example colds, inflammation, poisoning, disorders endocrine system etc.

Many patients approach the issue persistently, taking readings every 2-3 hours during the day. However, the indicators can vary greatly and completely distort the overall picture. The treasured 37.2° received in the morning does not at all indicate the onset of pregnancy, since the numbers may fluctuate during the day.

The first half of the cycle (3-4 days after menstruation) is characterized by a reduced BT of 36.5-36.8°. This is thought out by nature for the maturation of a healthy egg. The day before ovulation, the temperature usually drops sharply. Immediately after this (second half of the cycle), the readings increase to 37-37.2° and remain until the onset of menstruation. 5-7 days before the next menstruation, the temperature drops again to 36.8-36.9°.

What should the basal temperature be if there is no pregnancy?

If conception does not occur on the day of ovulation and in the 2nd half of the cycle, the temperature will drop. For a pregnant woman, for 18 days it remains in the range of 37.1-37.2°. But you should not rely only on temperature measurements or even the absence of menstruation. These phenomena may be caused severe stress, illness, hormonal imbalances, lifestyle and nutrition. Make an appointment with a gynecologist, who will confirm the increase in temperature due to the production of the hormone progesterone, which indicates successful conception.

BT in case of pregnancy

Graph indicators for early stages have diagnostic value and allow you to learn about pathologies before their immediate manifestation. Basal temperature during pregnancy during the day may vary slightly within the range of 37.1-37.3°, but in individual cases BT up to 38° can be considered normal. Responsible for increasing temperature female hormone progesterone, the production of which increases in a pregnant woman.

If the expectant mother measured her BBT during the quarter and kept a chart, then she will note that 5-7 days before the next menstruation the temperature did not drop (as it should have happened). It remained at 37-37.4°, which highly likely indicates the onset of pregnancy even before the delay.

If BT sharply increases or decreases, then there is a threat to the course of pregnancy and directly to the fetus.

Too low BT is often observed when the risk of miscarriage increases or during a frozen pregnancy (the fetus stops developing in the womb). In this case, the indicators deviate from the norm by 0.7-1°, so that the “normal” basal temperature of 36.6° should be considered pathological in the case of a pregnant woman. But if in the 1st half of the cycle the patient experienced reduced level BT (by 0.4 degrees or more), then doctors declare a temperature of 36.6-36.8° as the norm.

An increase in BT to 37.4° and higher may indicate inflammatory or infectious processes in the pelvic area. Also, high rates are typical for ectopic pregnancy, since progesterone in this case continues to be intensively produced.

Keep in mind that not all patients need to have their rectal temperature recorded. Doctors often advise this to women who have a history of miscarriage or cessation of child development, and also if at the appointment the doctor noted the risk of miscarriage. By monitoring the BT schedule during early pregnancy, the doctor can draw conclusions about the course of pregnancy at the beginning of the first trimester and, possibly, send the expectant mother for preservation.

Can you trust basal temperature?

Unfortunately, this method cannot be considered reliable and reliable, because BT can change for a number of reasons: gynecological, inflammatory, infectious and viral diseases, stress, taking medications, etc. In addition, a decrease in BT before a miscarriage or in the case of pathologies of fetal development does not always indicate threats, so you should not panic before visiting a doctor.

Modern medicine is of the opinion that keeping a schedule for home diagnostics is inappropriate. It can only be useful for identifying suitable days for conception.

Reasons for increasing or decreasing BT

Indicators may increase for the following reasons:

• systemic diseases: infectious, viral, colds, bacterial and fungal;
• inflammatory processes in the pelvic organs;
• individual characteristics of the body expectant mother when 38° is considered normal basal temperature;
• incorrect measurement (you walked before the procedure, performed the slightest physical activity).

The temperature is considered low if the readings do not reach 37° (except in individual cases). This often indicates threats, pathologies and complications. Often mothers ask what the basal temperature is during a frozen pregnancy. As a rule, it should be below 37° for several days (provided you take the correct measurements). In the case of serious pathologies or frozen pregnancy, the production of progesterone is suppressed, which is associated with low BT. In such a situation, the patient is immediately hospitalized and procedures are prescribed to save the pregnancy.

Having determined what the basal temperature should be during pregnancy, remember that the reliability of the readings may change under the influence of factors.

• Regular physical activity, sports, weight lifting. If you measure the temperature after stressful situations the figure may be higher.
• Psychological stress, emotional experiences, problems in the family and at work. Depression and stress, as well as constant thoughts about it, can affect the increase in BT at the time of measurement.
• Incorrect temperature measurement. Violation of at least one measurement step can lead to unpredictable distortion of the result. For example, some women measure BT at sitting position, and then they rejoice at the “coming pregnancy.” The high temperature in this case is due to the fact that blood is actively flowing to the pelvic organs. Therefore, readings should be taken correctly in a lying position immediately after sleep.
• The indicators will change if the woman's sleep duration changes. If you slept less than 4-5 hours at night, then there is no point in recording the result in a chart.
• Sexual contact less than 12 hours before measurement. Sexual activity (like any other physical and psychological stress) in the evening before the measurement day can change the measurement results.
• Snack after waking up. In many expectant mothers, toxicosis is quite acute, for which doctors recommend eating immediately after getting up. However, eat after measuring rectal temperature, otherwise the results cannot be considered reliable.
• Taking medications. Some drugs can affect the result, increasing or decreasing it. Complete the course of therapy and only then begin maintaining a schedule.
• Diseases (including gynecological). If you know about mild cold or infection, it is not advisable to take measurements on these days.

During your first visit to the gynecologist, you will find out what your basal temperature should be in the early stages of pregnancy. However, scheduling and monitoring BT is only appropriate during the first 2 weeks of the first trimester. After

So, you have built your first graphs and even before visiting gynecologist want to know if there are any deviations in the graphs. In classic guides to gynecology Five main types of temperature curves are described. For clarity, each type is accompanied by an example of a graph that most closely matches the described type.

Such graphs indicate an increase in temperature in the second phase of the cycle by at least 0.4 C; a noticeable “preovulatory” and “premenstrual” drop in temperature. The duration of the temperature increase after ovulation is 12-14 days. This curve is typical for a normal two-phase menstrual cycle. Example:

This graph shows a pre-ovulatory drop on the 12th day of the cycle (the temperature drops significantly two days before ovulation), as well as a premenstrual drop starting on the 25th day of the cycle.

There is a slight rise in temperature in the second phase. The temperature difference in the first and second phases is no more than 0.2-0.3 C. Such a curve may indicate estrogen-progesterone deficiency. Example:

IN gynecology it is believed that if such graphs are repeated from cycle to cycle, then this may indicate hormonal imbalances that are the cause infertility.

Basal temperature begins to rise only shortly before menstruation, and there is no “premenstrual” drop in temperature. The second phase of the cycle lasts less than 10 days. This curve is typical for a two-phase menstrual cycle with insufficiency of the second phase. Example:

Pregnancy in such a cycle is possible, but it is under threat from the very beginning. At this moment, the woman still cannot know about the pregnancy, even gynecologists It would be difficult to make a diagnosis at such an early stage. With such a schedule, we may not be talking about infertility, but about miscarriage. Be sure to contact gynecologist, if such a schedule repeats for you for 3 cycles.

A monotonous curve occurs when there is no pronounced rise throughout the entire cycle. This schedule is observed during an anovulatory (no ovulation) cycle. Example:

On average, a woman has one anovulatory cycle per year and there is no reason to worry in this case. But anovulatory schedules that are repeated from cycle to cycle are a very serious reason to turn to gynecologist. Without ovulation, a woman cannot become pregnant and we're talking about about women's infertility.

Chaotic temperature curve. The graph shows large temperature ranges; it does not fit into any of the types described above. This type of curve can be observed both with severe estrogen deficiency and depend on random factors. Example:

The gynecologist draws conclusions!

Regardless of what type of chart you have, do not make diagnoses based on charts and avoid doctors who do not prescribe additional examinations, if problems are visible on your charts. A competent gynecologist will definitely require hormone tests and conduct an ultrasound examination before prescribing medications.

Women who watch their levels basal temperature, know that its indicators reflect internal processes, such as ovulation and pregnancy. What is he talking about? low temperature throughout the cycle or during ovulation and how it affects the ability to get pregnant.

How does the temperature change throughout the cycle?

A woman can become pregnant only when she is ready for fertilization. This period is called ovulation. Accordingly, to understand whether there is a chance of getting pregnant, you need to calculate the moment of ovulation. It’s not at all difficult to do this with help.

All monthly cycle women are divided into three main stages, each of which corresponds to a certain temperature:

If you look at the curve graph, then in the middle of the cycle you will clearly see a temperature jump that lasts 1-3 days. These are the few days that are favorable for conceiving a child.

When the temperature rises to 37 or higher, the chance of getting pregnant is greatly reduced. Since at this moment the egg dies, and pregnancy can occur only in the next cycle.

Attention! A woman can become pregnant at a time when the BT level in the middle of the cycle has not yet reached 37 degrees.

But you should understand that basal temperature is very individual indicator, and for each woman it can differ significantly from the norm. Therefore, when analyzing a graph, you need to look not so much at the indicators as at their ratio. The temperature difference between the first and second phases should be 0.4-0.5 degrees, that is, during ovulation BT should be higher than during menstruation .

What does a temperature below 37 mean?

In fact, the hormone progesterone is responsible for increasing basal temperature. His high concentration in the blood during ovulation leads to a jump in BT. Accordingly, if a woman’s temperature does not rise to this level, most likely the problem lies in disrupted hormonal levels.

There are several other explanations for this phenomenon:

1. Lack of ovulation . Once or twice a year, every woman may experience an anovulatory cycle. That is, the egg does not mature, which means she cannot become pregnant this month. In this case, the BT schedule will be almost uniform, without jumps, and menstrual flow very scarce. If this happens constantly, you should definitely consult a doctor.
2. Implant window . If pregnancy occurs 5-6 years after ovulation, BT decreases as a result of the implantation egg attaching to the uterine wall. This reduction lasts no longer than 36 hours. If pregnancy does not take place, the temperature will remain at around 37 and gradually decrease.
3. In a small number of women The temperature during ovulation, contrary to the norm, may decrease.

Also, you need to understand that in the first phase of the cycle and immediately before the onset of menstruation, the basal temperature does not exceed 37 degrees.

What happens if pregnancy occurs at a low basal temperature?

If for successful conception it is necessary that the temperature be below 37 degrees, then for the further development of the embryo it is imperative that its level be slightly higher. In almost all pregnant women, in the first weeks after conception it remains at 37.

During ovulation, the basal temperature should be 37.1-37.3, a deviation from the norm of 0.8 degrees up or down is already alarm signal. Low temperature indicates phase failure corpus luteum, which is responsible for the production of progesterone.

The corpus luteum is a temporary gland, thanks to which the embryo receives everything in the first weeks of pregnancy. necessary substances to maintain life.

Accordingly, even if pregnancy occurs at a low temperature, the fetus will not be able to survive.

Reasons for low BT after ovulation:

• Implant window.
• Estrogen and progesterone deficiency.
• The temperature was measured incorrectly.
• Alcohol, stress, jet lag.
• Individual norm.

The following signs may indicate a lack of progesterone in the blood:

• There is no decrease in BT before menstruation.
• The second phase is too short, less than 10 days.

If the basal temperature has decreased after ovulation, you need to, firstly, eliminate errors when measuring BT, and then carefully study the graph. If there are deviations from the norm, you must first pass all the tests. If the results are within acceptable limits, then this basal temperature refers to individual characteristics body.

To sum it up

The method of measuring basal temperature is based on calculation exact date ovulation, during which occurs sharp increase temperature. However, in order to get pregnant, a woman needs to rely not on the temperature itself, but on its dynamics throughout the entire cycle.

In most cases, you can get pregnant at a temperature of 36.2-36.9. But immediately after this, BT must necessarily increase.

You need to understand that the basal temperature can be different for each woman, which means that this method of pregnancy planning is considered not very reliable. It is not necessary to judge the onset of ovulation or pregnancy; for reliability, additional ultrasound monitoring is necessary.

It’s definitely not worth making any decisions on your own based only on the basal temperature chart. Only a doctor can interpret the results of the graph.

Pregnancy is a period when the expectant mother monitors her health with special care. After all, now she worries not only about herself, but also about the life that arose inside her body.

It is very important not to worry about anything, because unnecessary worry will not bring any benefit. There are some methods, such as measuring basal temperature, that can help you monitor your health status on an ongoing basis.

This technique helps to identify some dangerous symptoms. By reacting in time, the expectant mother will be able to protect her unborn baby. If any deviation from the norm is observed, you should urgently seek help from a doctor.

What is BT?

It is usually abbreviated as BT, less commonly rectal temperature. As the name suggests, it is not measured in the standard way - under the armpits. There are several measurement options - in the mouth, in the vagina and in the rectum. It is often used to track ovulation when a woman wants to become pregnant.

Ordinary menstrual cycle more often it shows up to 37 Celsius, but exactly until the moment ovulation begins - then the temperature increases by 0.4 Celsius. After this, or within 1-2 days, it decreases again. But if this does not happen, then, most likely, pregnancy has occurred.

How long should you be during pregnancy? And how long should it last?

Each organism is individual, but normally it is 37.1 – 37.3, which is exactly what the temperature is during ovulation and remains the same if pregnancy occurs. It's worth remembering that border norm– 37.0. If there is a deviation of 0.8 degrees in any direction, this is a reason to go to the doctor, or at least you should consult a doctor.

As for how long it lasts, the answer is clear - from the beginning of pregnancy and the first few months while the girl is carrying the fetus.

Why measure BT?

There are two reasons for this - to monitor the health of the mother and child, as well as to plan pregnancy.

The first reason, as mentioned above, helps to understand whether everything is in order with your health. And the second reason helps to calculate ovulation. When a woman wants to give birth to a child, she needs to determine when ovulation occurs. When there is an increase in BT, this is a sign that it has arrived, and now highest probability get pregnant.

How to measure it during pregnancy?

Be sure to take the measurement in the morning, immediately after sleep, when the body is still at rest. Important point– it is advisable to get full sleep, at least six hours. It can be measured in any way, but rectal is considered the most reliable. Measurement in this way should be carried out for at least three to four minutes.

Oral and vaginal measurement methods are also suitable, but the time increases to five minutes. Any thermometer will do - both a regular mercury thermometer and an electronic one. It is advisable to take measurements every day and mark them in a notebook or a special chart - this makes it easier to track the dynamics. The procedure must be carried out at the same time each time, the permissible time difference is thirty minutes.

Some factors, such as illness, stress, travel, consumption of alcohol-containing products and even certain medications, can affect the accuracy of the result. You should also not use contraceptives if you are measuring your rectal temperature.

Normal after conception

Each organism is individual. This can be proven by a simple fact - some people have a normal (non-rectal) temperature of 36.6, while others have a normal temperature of 37 and even higher. At the same time, two types of people feel excellent and do not get sick.

So when measuring BT - everything depends on the specific organism. However, you should know the generally accepted and most common norms - from 37 to 37.3. The temperature rises, as a special hormone, progesterone, begins to be produced in large quantities. This happens to protect the fetus.

There were cases when a woman had a rectal temperature of 38, but she was not sick and everything was fine with the fetus. Such cases are very rare; usually, if the temperature is already above 37.3 or below 37, it is wiser to consult a doctor.

Determining pregnancy by basal temperature

Most likely, a woman is pregnant if the following symptoms are observed:

• The temperature is elevated three days after the end of ovulation.
• If, with a normal two-phase schedule, the girl observes another jump in temperature (this condition is not considered mandatory).
• The corpus luteum phase does not stop for 18 days - that is, the temperature is elevated all this time.

Daily fluctuations in BT

As usual, you need to take your temperature immediately after sleep, at the same time. The fact is that factors such as light physical activity, food, and even clothing can affect the result. It is normal when it rises above 37.3 during the day (not in the morning) - however, the reason for such an increase is precisely the factors described earlier.

Therefore, there is no point in measuring it during the day or even in the evening - you will not understand whether the fluctuations are caused by the normal load on the body or whether there is a reason to worry. Just imagine, in the early stages in the evening, BT can increase by 1 degree! Morning results are the most reliable, so mark them.

Promotion

If there is a situation with an increase in body temperature during pregnancy, inflammatory or infectious processes. But this is only if the increase was recorded correctly, that is, in the morning. Termination of pregnancy in this case is unlikely, but it cannot be discounted.

Regarding ectopic pregnancy, it may not necessarily cause an increase in rectal temperature. Usually it is within normal limits. If this type of pregnancy occurs, the woman may feel severe pain in the abdomen, bleeding may even occur. In this case, you cannot delay; you should call an ambulance.

Fall

This also happens. Its fall, especially sharp, should be alarming. This means that there is insufficient production of hormones. This clearly indicates that the body is unable to maintain female body during pregnancy.

If, along with a decrease in rectal temperature, you notice symptoms such as abdominal pain, bleeding, prolonged uterine tone, then consult a doctor and undergo an examination.

A frozen pregnancy usually shows a result below 37, but even in this case you should not panic, but contact a medical facility.

When and how to measure?

In the morning, without getting out of bed, in a state of rest and minimal activity. To do this, you need to take a thermometer and place it two centimeters into the vagina or rectum. You need to hold the thermometer for three to five minutes.

It is necessary to measure BT each time using the same method, that is, choose one - rectal or place the thermometer in the vagina. The thermometer cannot be changed either, nor can the measurement time - if you decide to measure at 8.00 in the morning, then continue in the same spirit. Fluctuations can be up to thirty minutes in both directions.

To carry out the procedure as accurately as possible, here are a few rules that must be followed:

• Do the procedure in a horizontal position and nothing else, don’t even turn on your side, much less squat.
• Required good sleep- from five hours.
• It is advisable not to have sex while you are monitoring temperature changes. Or at least maintain a gap of half a day between measurement and sexual intercourse.
• You should not take medications - they both lower and increase BT. It’s worse when they raise it - yours may be below normal, and you will think that she is fine.
• Have breakfast only after the procedure.
• Try not to get sick - even a sore throat can distort your readings.

Why do you need a schedule?

If the expectant mother wants to seriously monitor this indicator, then she cannot do without a chart. Various circumstances can affect rectal temperature, especially in the first months of pregnancy.

Typically, fluctuations on the chart look like this:

1. On the day of conception - from 36.4 to 36.7.
2. The next three to four days there is an increase of 0.1, that is, it can reach 37 degrees.
3. The value may remain the same for the next two to three days.
4. On the day of implantation of the fertilized egg into the uterine mucosa, it decreases to 36.5-36.6 degrees.
5. The next three the day goes by smooth increase and is achieved from 36.7 to 37.
6. The next fourteen days the value ranges from 36.7 to 31.1. It is important to monitor whether it has dropped below the value it was during ovulation.

It is important to indicate in the chart not only the numbers, but also the possible circumstances that influenced them - illness, stress, admission medical supplies etc. The attending physician should know about them.

How to correctly draw up and decipher a schedule: a detailed guide

You can draw it yourself, or find it on the Internet and print it. Include the following notes in your schedule:

"Pregnant" charts

You can’t measure everything with just a graph; discrepancies are acceptable. U different women happen different indicators. For example, some people do not observe implantation retraction, or there are several of them at once.

It happens that the temperature rises sharply, or, conversely, gradually. Sometimes it does not rise above 37. All the described options are determined by doctors as the norm.

Is it possible to determine pregnancy with a thermometer without a chart?

You can, but to do this you need to follow the rules:

• In the evening, shake the thermometer and place it nearby, but not under the pillow. The main thing is that it is convenient for you to get it without using sudden movements;
• In the morning, without eating, and without even getting up, use a thermometer. Select either rectal method, or place a thermometer in the vagina. It should be placed two centimeters;
• Wait three to five minutes;
• If the reading is above 37, you are probably pregnant.

But you can’t count on accuracy; an increase can signal an inflammatory process, infection, hormonal imbalance or ordinary stress.

Factors influencing performance

To get reliable result, exclude the following situations:

• Taking medications;
• Use of contraception (oral or IUD);
• Banal lack of sleep;
• Consumption of alcoholic beverages;
• Sex less than six hours before measurement;
• Overwork;
• Any diseases;
• The usual temperature is elevated.

Do I need to be monitored during pregnancy?

It makes sense to do this during the first months. It remains elevated until the twentieth week after conception. Usually, not only gynecologists, but even endocrinologists vote for the control of BT.

By measuring BT, you can notice deviations in time and react to them. Low performance may signal a threat of miscarriage. Therefore, the answer is clear - it is advisable to control it. However, this is not the only way diagnosing the condition of the expectant mother and her child.

At different stages of pregnancy

Let's consider the basal temperature at various stages of pregnancy:

• Week 3 corresponds to the 1st embryonic week. BT shows from 37 to 37.7 and slightly higher. A mark below indicates deviations and the danger of miscarriage.
• H. 4 ranging from 37.1 to 37.3°, maximum - 38. If higher, then it may be an infection.
• N. 5 is stable from 37.1 to 37.7. If she “jumps”, then pay attention to other signs: nagging pain, hardening of the abdomen, softening of the mammary glands, etc.
• N. 6 maintains the same results: from 37.1 to 37.7. If it rises or falls significantly, fetal death is possible.
• N. 7-8 from 37.1-37.3 (not lower) and not higher than 38. For non-standard indicators, go additional diagnostics health (ultrasound).
• N. 9-10 - as during weeks 7-8, but more than 37 and below 38. If this is not the case, consult a doctor.
• N. 11 decrease from 37 to 37.2. If it continues to be high, then consult a gynecologist.
• H. 12 from 37 to 37.8, but not higher than 38. Ideal are from 37.6-37.7°.

Recent weeks show from 36.6 to 36.8. At the fortieth week it rises to 37.4 and can rise immediately before childbirth.

Deviation from the norm

If it deviates from the norm, then this is either ovulation or pregnancy. During pregnancy, the doctor often recommends measuring it to eliminate the risk. This method is especially often recommended for those who have previously experienced a miscarriage or problems during pregnancy.

Why is she too tall?

This may be due to infection due to inflammatory process, or even an ectopic pregnancy. In this case, you need to monitor some other signs: does your stomach hurt, what color is the discharge (normally transparent). If you observe them, you need to do an ultrasound.

Possible threat of interruption

This is signaled by a decrease in BT. The decrease occurs due to a lack of progesterone production. If the result falls below 37, you also experience abdominal pain and discharge brown, you need to urgently seek help.

Frozen pregnancy

Unfortunately, in this case the fetus will have to be removed; it threatens the woman’s life. It doesn’t always go away on its own, so you will have to seek medical help.

Other signs indicating fetal fading are the absence of toxicosis, the mammary glands no longer enlarge.

Does low BT occur during normal pregnancy?

It’s difficult to talk about norms - they are always conditional. Low temperature does not always prevent pregnancy; women give birth healthy babies and their lives are not in danger. In addition, there may be such an option - during ovulation, just before conception, the temperature was 36.4, so it is unlikely that it will reach 37 over the next two weeks.

However, if there are such signs - pain or opaque discharge - you need to go to the doctor.

Basal temperature of a healthy woman

The norm is not lower than 36.2, but not higher than 37.2. Before ovulation, the temperature drops, during which it rises - this way the most likely moment for conception is determined. After conception, it practically does not decrease.

Signs of probable infertility according to schedule

This is indicated by the following:

• The average for the second phase of the cycle (after the temperature rises) exceeds the average for the first phase by less than 0.4 degrees.
• In the second phase of the cycle, the temperature drops (it is below 37).
• The rise in temperature in the middle of the cycle continues for more than three to four days.
• The second phase is short (less than eight days).

Schedule for ovulation stimulation

With, especially clomiphene (clostilbegit) and using, in the second phase of MC, the rectal temperature graph usually becomes “normal”. Two-phase, with a pronounced phase transition, with quite high temperature in the second, with characteristic “stages” (the temperature doubles) and a slight drop.

If the stimulation schedule is disrupted and deviates from the norm, this may indicate an incorrect selection of the drug dose.

An increase in the first phase upon stimulation with clomiphene also occurs with individual sensitivity to the drug.

When to contact a gynecologist?

If you are seriously monitoring your BT and see a problem for two cycles in a row, consult your doctor. However, he should not prescribe drugs based on the schedule alone; you should be referred for other types of examinations. Pay attention to these factors:

• Novulatory charts.
• Constant delays in the cycle, but pregnancy does not occur.
• Late ovulation and you don't get pregnant for a couple of cycles.
• Controversial indicators with unclear ovulation.
• Graphs with high temperature or low temperature throughout the cycle.
• If the second phase is short (less than 10 days).
• High rates in the second phase of the cycle for more than 18 days, while there are no periods and pregnancy has not occurred.
• Bleeding or heavy discharge in the middle of the cycle.
• Heavy discharge during menstruation that lasts more than 5 days.
• Graphs with the temperature difference in the first and second phases less than 0.4.
• Cycles less than 21 days or more than 35.
• Schedules with clearly defined ovulation, regular sexual intercourse during ovulation, but the woman does not become pregnant for several cycles in a row.

BT as a method of contraception

You can use it because highest probability that a woman will become pregnant - during ovulation and two days after it. And since this method can be used to calculate this period, it can serve as a method of contraception.

Should you trust this method?

It can be used like additional method pregnancy control and planning. However, you cannot rely on it alone, since modern methods diagnostics are more accurate. But as an additional measure, measuring BBT is a great idea.