The coitus will not affect the fertilization of the egg, because in daily life, sexual life is a normal physiological phenomenon. The majority of the fertilized egg is in the coitus, about half a month or so after the bed, after the bed will grow and develop in the clinic, with the increase in hormone levels in the body, and gradually appear some corresponding clinical symptoms, such as nausea, vomiting, anorexia, etc., or in the clinic, breast changes, some people will also appear frequent urination symptoms, are all hormone levels, the uterus increase caused by the corresponding performance. It is recommended to strengthen nutrition and pay attention to rest in the early stage of pregnancy.