During the period of preparation for pregnancy, boys should pay attention to strengthening life care, regular medical checkups and so on. 1. Pay attention to strengthen life care: prepare for pregnancy, boys should pay attention to eat more nutritious food, to ensure balanced intake of nutrients, and actively quit smoking and drinking, etc., to help improve the quality of sperm. Boys should also develop good habits, ensure sufficient sleep time, avoid staying up late, overwork. Pay attention to appropriate physical exercise, which can help strengthen the body and improve immunity. Pay attention to wear cotton, breathable underwear, and on time cleaning and washing, should also be away from the high temperature environment, to maintain physical and mental pleasure. 2. Regular medical checkups: Men who are preparing for pregnancy can have regular medical checkups to monitor the quality of their sperm to ensure that they are discharging a sufficient amount of high-quality sperm. It is recommended to adjust the mindset of pregnant men to avoid excessive tension and anxiety, and to relieve stress appropriately. During the female ovulation period, you can appropriately increase the number of coitus in order to improve the chances of successful pregnancy.