1. The woman ovulates only in the middle of her menstrual cycle, and only then does she have the ability to conceive. Sexual intercourse at other times of the menstrual cycle is unable to make the woman conceive. The timing of sex does not need to coincide with ovulation because sperm can survive in the cervical mucosa and posterior vaginal vault for 48 hours or more. Since the survival time of the egg is too short, sex after ovulation cannot lead to pregnancy. 3. The timing of sex should be 1 to 2 days before ovulation. And have sex every 2 days to ensure the presence of sperm in the fallopian tube for 12 to 48 hours. Maintain the ability to conceive and increase the chance of conception. Frequent sexual intercourse can also lead to a decrease in sperm storage in the vaginal vault, which likewise reduces the chances of conception. 4, happy mood, relax yourself, women ovulation is affected by mental factors. If the mood is unpleasant and nervous, it can lead to endocrine disruption and inhibit ovulation, but once the mood is happy, ovulation will resume. A happy mood is also very important for men. When the cerebral cortex is in a good state, the whole body’s neurological and endocrine function is stable, the sperm production function of the testicles can play normally. A bad psychological state can affect a man’s ability to make sperm. Therefore, infertility couples should not blame each other, blame, both should not worry a lot, blame this and that, to be calm, remain optimistic, which is the basic condition of pregnancy.