First, when registering for marriage, do a good job of pre-marital examination, so as to be targeted;

Second, do a good job in the first trimester of pregnancy "five prenatal and postnatal examinations" (five prenatal and postnatal examinations, also known as five teratogenic examinations). Its content is: 1. Toxoplasma IGM；; 2. rubella virus IGM；; 3. cytomegalovirus IGM；; 4. Herpes simplex virus type I; 5. Herpes simplex virus type II);

Third, contact the hospital and do regular health care and monitoring during pregnancy.

In short, three months before conception, we must overcome bad living habits, do not drink or smoke, and keep our physical and mental state in the best posture. Avoid taking medicine after pregnancy (remember to listen to the doctor's advice), avoid radiation, maintain a healthy lifestyle, have a cheerful personality, eat more fresh fruits and vegetables, and properly supplement trace elements such as calcium from food.

The above is for reference only. I wish all the best and happiness!