Drinking once is a month before you can have a child, drinking once is not too big on the body, alcohol in the body will not be too long, a month after you can have a child. During this period, it is best to drink more water, eat more vegetables and fruits to speed up the body’s metabolism and promote alcohol excretion, and it is best to quit smoking and drinking during the preparatory period so as not to affect the development of the fetus after pregnancy. If you drink too much alcohol during the preparation period, the alcohol will pass through the placenta into the fetus to affect the development of the nervous system, if you often drink, quit drinking after 3 months before you can get pregnant. Preparation for pregnancy need both sides to go to the hospital for a physical examination, can not indiscriminately take drugs, and can not be exposed to radiation, and can not eat contaminated food, so as not to affect the development of the fetus, preparation for pregnancy need to reasonably supplement the folic acid, it is recommended to eat more protein-containing foods, enhance the body’s resistance.