Why can't I detect ovulation?

The method of measuring body temperature may not be accurate. Although a woman's body temperature fluctuates during the menstrual cycle, it is affected by many factors, such as weather, diet, and exercise. Therefore, measuring body temperature cannot completely accurately predict a woman's ovulation period.

The method of observing changes in sexual desire may not be accurate. Although sexual desire fluctuates during the menstrual cycle, it is affected by many factors such as mood, health, and medications. Therefore, observing changes in sexual desire cannot completely accurately predict a woman's ovulation period.

Pregnancy tests may not be accurate. Although pregnancy tests can detect pregnancy, they are not completely accurate in detecting pregnancy. Therefore, using a pregnancy test does not always accurately predict a woman's ovulation period.