Generally speaking, women will experience an obvious rise in body temperature when they enter the ovulation period, but this is not the case for everyone. First, endocrine influence, women before ovulation due to their own endocrine disorder, resulting in estrogen secretion too little luteal hypoplasia and premature atrophy, will appear after ovulation body temperature does not rise or rise is not obvious, it is recommended to go to the hospital for early examination and treatment. Secondly, irregular life, if women work at night or stay up late for a long time, using the basic body temperature to measure ovulation is not reliable. Because the basic body temperature needs to be tested regularly at regular intervals during a normal lifestyle, measuring ovulation by body temperature is an indirect way to estimate ovulation. It is not possible to calculate the date of ovulation from body temperature if one has an irregular lifestyle. In addition, not all people have the same symptoms during ovulation and it is not possible to make a decision from temperature alone, as long as you have regular periods, it basically does not affect normal conception. However, there are some women who do not experience a rise in temperature, but as long as their periods are regular, there is no need to worry too much.