Ovulation day to take every other day coitus and every day to arrange coitus can be, pregnant couples can be based on their own situation, comprehensive judgment, can not be generalized. Having unprotected sex around the time of ovulation can increase the chances of conception. For couples who need to prepare for pregnancy, they can try to have intercourse every day according to their own situation, as long as their bodies can tolerate it. If a couple has difficulty tolerating intercourse every day, they can have intercourse every other day, which can also increase the chances of conception, and they need to avoid excessive exertion. Couples in the preparation period, both need to ensure sufficient rest time, avoid long-term late night, so as not to affect the body endocrine, affecting the conception. At the same time, both husband and wife need to quit smoking and drinking, if excessive and frequent smoking and drinking may affect the treatment of eggs and sperm, affecting the development of the embryo, or even lead to embryo malformation. Once diagnosed as pregnant, women should take appropriate folic acid supplementation before the third trimester of pregnancy, which can effectively prevent fetal malformation. During pregnancy, it is necessary to follow the doctor’s instructions for regular review so as to be able to understand the growth and development of the fetus.