Three beers usually about 3 months before it does not affect the preparation for pregnancy. Alcohol can cause some damage to sperm and eggs, and severe sperm deformities or egg damage may lead to the development of hereditary diseases, or even lead to fetal deformities and so on. Usually, during the preparation for pregnancy, smoking and drinking alcohol should be prohibited 3 months before conception, because the follicle development of women needs 30 days, and the sperm production cycle of men is about 70~90 days, so if women drink three bottles of beer it takes at least 1 month before it will not affect the preparation for pregnancy, and men need 3 months before it will not affect the preparation for pregnancy. If both husband and wife drink less than three months after pregnancy, it is recommended that should be regular pregnancy test, if you find abnormalities in the fetus, it is recommended that timely medical treatment, under the guidance of the doctor, improve the relevant examination, clear cause, symptomatic treatment.