Drinking alcohol before pregnancy may affect the fetus. Drinking alcohol before pregnancy may affect the quality of sperm and eggs, and may reduce the chances of getting pregnant. Drinking alcohol before pregnancy may adversely affect the growth and development of the fetus, and may result in fetal malformations after pregnancy. Therefore, it is recommended to avoid alcohol intake in the first three months of pregnancy, because it takes about three months for the egg to mature and ovulate, and the body’s metabolism is also about three months. So avoiding alcohol intake for three months before conception and maintaining a healthy lifestyle will help ensure the quality of the eggs. In the period of preparation for pregnancy, must ensure sufficient sleep, avoid late nights and overwork, and in the preparation of any symptoms of discomfort, need to go to the hospital in a timely manner, to identify the cause of the disease and then give standardized treatment.