The male partner does not need to be abstinent during the preparation for pregnancy, but rather to have a regular sex life so as not to affect the quality of sperm. Men generally reach saturation of their sperm stores in about 3 days, and with prolonged abstinence, sperm tend to accumulate and age, and the number of dead sperm and deformed sperm increases. Therefore, during the preparation period can be regular about 3 days of intercourse, in close proximity to ovulation can be appropriate to increase the number of intercourse, without a long period of abstinence. In addition, during the preparation period, the male partner should also develop good living habits, maintain a good mood, engage in regular physical exercise to enhance physical fitness, avoid staying up late and overworking, quit smoking and drinking at least 3 months in advance, and start taking folic acid supplements. In addition, preparation for pregnancy requires the cooperation of both spouses, and in order to achieve eugenics, it is recommended that both partners should go to the local obstetrics and gynecology department or genitourinary department for a comprehensive examination before preparing for pregnancy, and under the guidance of the doctor to make both partners reach an optimal state of physical preparation for pregnancy.