In female patients after ovulation, coitus is not necessarily clear is a son, in the case of ovarian development and maturity of ovulation, sexual intercourse can improve the occurrence of pregnancy, but the birth of a boy, the birth of a girl and whether or not to coitus after ovulation, there is no clear relationship between the boy, the girl is the parents of the child, has a close blood relationship, should be treated the same. Especially nowadays, society has allowed the birth policy of two children, so for both husband and wife, as long as the child grows and develops well and the child is normal, don’t be too obsessed with the birth of a boy, or the birth of a girl. It is recommended that during the preparation for pregnancy, patients need to maintain a good state of mind, do not have too much psychological pressure, relax, pay attention to nutritional enrichment in the diet, pay attention to rest in life, to avoid often staying up late, and appropriate activities, which will be conducive to the embryo as well as the healthy growth of the fetus.