During the first 3 months of pregnancy, you can go about your normal work and life, but you should take oral folic acid in advance during the first 3 months of pregnancy to prevent the occurrence of fetal neurospinal malformation. Both men and women should undergo health checkups and eugenic examinations, such as the four eugenic tests, liver and kidney function tests, blood sugar and lipid tests, infectious disease tests, routine blood tests, blood group tests, and even folic acid bioavailability tests. If there is any abnormality in the result after the examination, active treatment should be carried out. Before pregnancy, you should have a good work and rest schedule, not to stay up late and keep a happy mood. You should eat light, easily digestible and nutritious food, stop smoking and drinking, and strengthen physical exercise to enhance your resistance and prevent the occurrence of diseases.