Men who drink beer once in a while will not have much effect on the preparation for pregnancy, but if you drink beer for a long time, it will have some effect on the preparation for pregnancy. Drinking alcohol will reduce the quality of sperm and cause fetal deformities, and men should prohibit drinking alcohol during the preparation for pregnancy. For couples in the preparation period, men drinking alcohol will reduce the chances of pregnancy, and alcohol will have a serious impact on the quality of male sperm. In addition, alcohol can cause miscarriage, fetal developmental delay, fetal malformation, etc. When you conceive after drinking alcohol, you are likely to have a miscarriage. Couples need to adopt a scientific approach during the preparation for pregnancy, adopt a healthy lifestyle such as banning smoking and alcohol, increasing the intake of nutritious food, taking oral folic acid as prescribed by the doctor, controlling body weight, and developing a good mindset. Couples should go to the hospital immediately if they have any uncomfortable symptoms during the preparation for pregnancy.