It takes 3-6 months to prepare for pregnancy, during which you need to pay attention to: first, keep your mood relaxed and avoid the adverse effects of tobacco, alcohol, bacteria and viruses. Secondly, increase nutrition appropriately, eat more food rich in protein, vitamins and trace elements, increase exercise appropriately, exercise, strengthen the body and improve immunity. Third, life should be regular, avoid staying up late and getting cold, and regular menstrual cycle. Fourth, 3 months before pregnancy, both men and women need to do a comprehensive physical examination, women should pay attention to gynecological ultrasound, white belt examination and ovulation, whether the fallopian tubes are open, men should also do the sperm count, sperm motility, malformation rate and other checks. Fifthly, you need to take small doses of folic acid in the first 3 months of pregnancy to prevent fetal malformations, and the chances of pregnancy will be increased if you have sex during ovulation.