Generally abstinence for 5-7 days has better sperm quality, especially adjacent to the days before ovulation when abstinence starts, and intercourse during ovulation can significantly improve the chances of pregnancy. Usually, the amount of semen may not be enough if the abstinence time is too short; if the abstinence time is too long, the possibility of dead sperm and heterozygous sperm will increase, both of which will affect the quality of sperm. Generally, life and diet habits can be adjusted to improve sperm quality through, for example, quitting smoking and alcohol, eating more vegetables and fruits rich in vitamin E and various trace elements; wearing loose underwear at ordinary times can avoid less interference with the scrotum and prevent the scrotum temperature from being too high; exercising properly, paying attention to the combination of work and rest, and avoiding strenuous exercise to prevent sperm vitality from being affected. During the preparation period, you need to adjust your body and mind to the best condition. Eat nutritious and easily digestible food and fresh vegetables and fruits to strengthen your body and improve your immune system. At the same time, maintain good hygiene habits and relax.