The average woman’s temperature rises for about 12 days after ovulation and then begins to fall.
Normally, the basal body temperature is chosen to measure the change of body temperature during a woman’s menstrual cycle. After ovulation, the basal body temperature will rise by 0.3 to 0.5 degrees due to the influence of progesterone. This slightly higher basal body temperature usually lasts for about 12 days, and then starts to fall 1-2 days before the next menstrual period.
As different women have different body qualities, there are some differences in their menstrual cycles. Women with a shorter duration of luteal function after ovulation often have a shorter duration of post ovulation rise in basal body temperature; women with a longer duration of luteal function after ovulation often have a longer duration of post ovulation rise in basal body temperature.
In some women, the basal body temperature fluctuates greatly after ovulation, which is often caused by luteal insufficiency and should be promptly consulted.