Basal temperature during pregnancy in the early stages. Basal temperature chart for pregnancy

Do not know how to measure basal temperature during pregnancy and make a correct schedule? In this article, you will learn how to do this, as well as how to decipher the resulting graph.

Basal temperature is measured rectally after prolonged rest or sleep. This is the lowest temperature of a person's body.

Based on the basal temperature( BT) values, a graph is drawn from which it is possible to draw some conclusions about the reproductive function of women, in particular, many use this method to determine the onset of ovulation or to determine the possible onset of pregnancy.

How is basal temperature measured during pregnancy?

Usually we measure body temperature in the armpit with a conventional thermometer, but the basal temperature and its values ​​are different.

• First, the basal temperature measurement is done rectally, i.e.in the rectum
• Secondly, you need to measure at the same time, with a difference of not more than 30 minutes
• Third, the temperature is measured in the morning, before that you must sleep continuously for at least 4-6 hours
• B-Fourth, measurements are taken before you get out of bed, before you can not sit down, and it is better not to stir, only to reach out for the thermometer, which should be put as close as possible from the evening( at arm's length, not farther)

Measurementbasal temperature during pregnancy

IMPORTANT: Do not changee thermometer during measurement of basal body temperature time.

The measurements are carried out, as in the case of body temperature measurement, 5-7 minutes. Read the thermometer immediately.

Based on the temperature values, a graph of BT versus cycle day is plotted. If there were any deviations on the day of measurement, for example, you measured the temperature at another time, got up at night to the toilet or to the child, something is worse - this must be recorded in notes in your records and graphics.

Drawing a basal temperature chart for pregnancy

To make any conclusions about determining the day of ovulation, you need to take measurements at least 3 months in a row.

Graph of basal temperature in pregnancy planning

• You can build the graph yourself, but you can use special programs for graphing or special resources on the Internet
• . You will only need to enter the thermometer readings into the table, and you will receive a schedule with the ovulation day designation, and also see how yourthe cycle is broken down into the follicular and luteal phases of the

. If a woman has ovulation, the graph will look something like this:

Normal graph bknitting

temperature in the first phase can be seen that the basal temperature below 37 ° C, before ovulation observed drop in temperature, the second phase of the cycle increases BT at least 0,4 ° C of the average temperature of the first phase and kept at this level for 12-14 days. Before menstruation, the temperature also drops somewhat, as before ovulation.

Ovulation occurs on the day before a sharp increase in BT, on the graph is indicated by a vertical line approximately in the middle of the cycle.

Even in healthy women who do not have problems with reproductive function, about twice a year there are anovulatory cycles, i.e.cycles in which there is no ovulation. The graph of BT in this case looks like this:

Anovulatory chart of basal temperature

In the anovulatory cycle, the temperature does not increase,no yellow body is formed, which affects it. Therefore, in this graph there is neither a sharp drop in temperature nor a rise, and accordingly there is no ovulation line and the cycle is divided into phases.

If you observe several such cycles in a row, consult a doctor and take the tests, becausethis indicates a violation of the childbearing function.

If a woman has problems with estrogen production, then this can also be determined by the BT schedule. It will look like this:

Basal temperature chart for a lack of estrogen

If the amount of estrogen produced is insufficient, the temperature in the first phase will be about and above 37 ° C, while at normal levels, the BT should not exceed 36.2-36, 5 ° C.

If the body produces insufficient and estrogen and progesterone, then on the chart it can be seen as follows:

Basal temperature chart with a lack of progesterones and estrogen

As you can see, the temperature in both the first phase and the second phase does not exceed 37 ° C.In addition, the difference between the first and second phase is only 0.2-0.3 ° C.

IMPORTANT: To diagnose only according to the basal temperature chart it is impossible, for this it is necessary to undergo the necessary examinations and to pass the tests.

The graph of BT can only make a woman think that something may be wrong, supplement the existing picture or confirm the doctor's diagnosis.

What should be the basal temperature during pregnancy before the delay?

• Before the delay, the woman is in the luteal phase of the cycle. As seen from the graphs above, the temperature of this phase is slightly increased in relation to the first phase of
• . In case of pregnancy, the temperature will stay above 37 ° C and there will be no drop in temperature before the onset of menstruation
• .if more than 2 weeks after ovulation has passed, and the schedule line does not go down, it makes sense to think about whether you are possibly pregnant
• And if it's already been 18 days and BT is above 37 ° C, then the probability of pregnancy is very high. Make a test, although at this time it may not work yet.
• A more reliable method is a blood test for HCG, a hormone that says about the onset of pregnancy.
• It can be taken 7-10 days after ovulation,at this time, the implantation of a fertilized egg in the uterine wall takes place and the body begins to produce a pregnancy hormone
• It also happens that the temperature is below 37 ° C, but pregnancy has occurred. In this case, it is possible that the body produces insufficient progesterone, which is responsible for the safety of pregnancy and reliable implantation of the ovule
• . In this case, it is better to visit a doctor and donate blood for analysis to determine the level of the hormone, you may need to take medications containing synthesized progesterone( yogurt or dyufaston)to keep pregnancy

Basal temperature chart for pregnancy

The graph of BT during pregnancy has not two phases, but three, and looks something like this:

Graph bacial temperature during pregnancy

Let us consider the graph in more detail.

1. The first phase. The first 5 days is menstruation, the temperature drops below 37 ° C.On the peaks, we draw a line - this is the temperature of the first phase of
2. . On the 14th day, ovulation occurs,then the basal temperature rises by 0.3 ° C followed by the continuation of the growth of
3. . In the second phase, the temperature is set approximately 0.5 ° C higher than in the first
4. . On the 7th day after ovulation, the so-called "implantation" occurs - a sharp drop in temperature inan average of 0.3 ° C.On this day, the egg began to implant in the wall of the uterus
5. In the third phase, there is still a slight increase in temperature to 37-37.2 ° C and it keeps at this level for the first two weeks of pregnancy, further measurements of BT are not informative due to changes in the hormonal background

Normalbasal temperature during pregnancy

• In pregnancy, the basal temperature should not normally drop more than 0.2 ° C and stay at 37-37.3 ° C and above
• If the temperature begins to fluctuate and then fall, then rise, rather run to the doctor
• Suchfluctuations may indicate a lack of necessary hormones, other possible disorders or the miscarriage that started.
• In some cases, the temperature can reach as high as 38 ° C, which can also be normal

. What should be the basal temperature in the early stages of pregnancy?

The first two weeks of pregnancy, basal temperatures range roughly between 37 ° C and 37.3 ° C.It is according to the values ​​of BT that it is possible to determine the probable onset of pregnancy before the test.

However, the BT schedule is a very unreliable method of diagnosing and determining pregnancy,a rise in temperature can be triggered by other factors:

• the presence of inflammatory diseases
• by incorrect temperature measurement
• if there are any problems with gynecology
• were on the eve of strong physical activity
• had a sexual act less than 4 hours before the measurement
• there are infectious diseases
• femaletakes any medications that can affect the BT

Why has the basal temperature decreased during pregnancy?

• Doctors advise that baseline temperature measurements during pregnancy are not for everyone, but only for those women who already had problems with bearing a baby: there were miscarriages or frozen pregnancies.
• Drawing up a schedule of BT in this case will help to notice any deviations or violations in time and timelyon them to respond with the corresponding treatment
• In this case, a decrease in BT during pregnancy below 37 ° C will speak of a lack of progesterone and a possible miscarriage or termination of fetal development
• Ifthe same time to notice, perhaps prescribing drugs with progesterone will save your pregnancy. Therefore, doctors and ask their patients to take measurements if they previously had problems with bearing

Decoding the basal temperature chart for pregnancy at the gynecologist

Increased basal temperature during pregnancy? The acceptable value of the increase in BT during pregnancy is 38 ° C.If you want more, go to the doctor. Perhaps in your body inflammation occurs, which can harm the fetus at such a short time.

The doctor will prescribe additional examinations and tests, maybe you just incorrectly measured the temperature, so do not worry in advance, and even more so do not yourself make a diagnosis. Trust your doctor.

Basal temperature in the frozen pregnancy

BT with a dead pregnancy falls below 37 ° C.This is due to the fact that when the fetus does not develop, the yellow body stops its work, including the production of progesterone.

But this does not always happen, sometimes the temperature remains at the same level, therefore it is impossible to judge only the BT schedule.

Basal temperature with ectopic pregnancy

If pregnancy ectopic, the yellow body still works and fully performs its functions, which means that it produces progesterone and the basal temperature graph looks the same as in uterine pregnancy.

With ectopic pregnancy, the basal temperature rises in the second phase, so the measurement of BT in this case is not informative and other diagnostic methods should be used.

We would like to draw your attention again to the fact that the measurement of basal temperature and scheduling is not a reliable diagnostic method, the BT schedule only complements the overall picture, confirms suspicions, helps in time to respond to possible deviations in reproductive function.

To determine the day of ovulation, there are more reliable methods, such as tests for ovulation or folliculogenesis, and pregnancy tests for pregnancy and a blood test for hCG.

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