What changes occur in body temperature during ovulation?

Many couples are in the stage of preparing for pregnancy and will enter an ovulation period. What needs to be observed during the ovulation period is the change in body temperature, which can be determined by testing the body temperature when waking up in the morning. Under normal circumstances, people's body temperature will generally rise or fall during the ovulation period, but it does not rule out that people with irregular lifestyles, who often work and stay up late at night, and those with severe insomnia will also have changes in body temperature.

Should I monitor my body temperature during ovulation?

The change in female body temperature during ovulation is represented by the temperature measured when waking up at 6-7 in the morning but not yet getting up to move around. The basal body temperature can more accurately reflect the function of ovarian ovulation and the corresponding endocrine changes. Therefore, the change in female body temperature during ovulation is a simple and effective means of self-monitoring to determine ovulation. What changes occur in basal body temperature during the menstrual cycle?

How to observe body temperature during ovulation?

Before ovulation is the ovulation period, the ovaries secrete estrogen, and the basal body temperature is mostly passively below 36.6℃. After ovulation, a corpus luteum is formed in the ovary, which secretes progesterone. Progesterone has a thermogenic effect on the central nervous system, raising the basal body temperature by 0.3-0.5°C. The increase in body temperature continues until 1-2 days before the onset of menstruation and then begins to decline.

In this way, the change in basal body temperature during a menstrual cycle with ovulation period shows a biphasic curve (with picture). The temperature changes during a woman's ovulation period. Non-ovulation may occur 2-3 days before or after the body temperature drops, that is, at any time when the body temperature starts to drop, reaches the lowest point, or starts to rise. It is inferred that the date with the lowest body temperature may be the date closest to ovulation. On the 4th day when the high temperature occurs, ovulation must have occurred and the egg has died. It is safe to have sexual intercourse from this time until the next menstruation. Some basal body temperatures rise in steps, and it takes several days to reach the peak, which makes it difficult to calculate the exact time of ovulation.

For women who have irregular lifestyles and often work night shifts, it would be unreliable to use basal body temperature to measure ovulation to achieve safe period contraception due to changes in body temperature during ovulation. Because basal body temperature requires regular, fixed-point testing under a regular lifestyle, it is only an indirect way to estimate ovulation. If the body temperature is not measured accurately, it is even more impossible to calculate the ovulation date from the body temperature.