It is best to avoid having intercourse twice a day during pregnancy preparation, as this can affect the quality of sperm. It is recommended to nurture your sperm and to abstain from sexual intercourse for a week before preparing for pregnancy in order to have good quality of fertilized eggs, and you can have intercourse once every other day during ovulation. If you have intercourse twice a day, you will be easily fatigued for a long time, and the quality of sperm will be poor, and you will be prone to miscarriage or even poor fetal development and poor health during pregnancy. Both men and women need to pay attention during the preparation period, eating a light diet, avoiding spicy and stimulating food, eating more protein-rich food, eating more fresh fruits and vegetables, and taking appropriate vitamins and folic acid supplements. Relax and keep a happy mood. Eugenics tests such as liver function, hepatitis B, immune panel 4, TORCH, etc. are also recommended during pregnancy preparation.