We know that pregnancy preparation is not only a matter for the woman. It is a very important stage for both men and women. A good pregnancy preparation is directly related to the physical and mental health of the baby in the future. In our daily life. Many young couples and their parents only start to pay attention to pregnancy precautions and maternal nutrition when they know they are pregnant. Only then do they start to pay attention to pregnancy precautions and nutrition of pregnant women and related knowledge. Of course, this is not too late. But it is also very important to be better prepared before we get pregnant! Especially the mother-to-be and of course the father-to-be. Here we discuss the pre-pregnancy considerations for fathers-to-be from the doctor’s point of view. First, in the first 3 months of pregnancy. You should start to pay attention to your diet. Enhance your nutrition. A reasonable choice of food and good eating habits will be beneficial to the father-to-be. To ensure sufficient quality protein intake. Protein is an important component of cells. It is also the raw material that makes up sperm cells. It can improve the quantity and quality of sperm. Take the right amount of minerals and vitamins. It is recommended that men also eat as much fruit and fresh vegetables as women. Second, regular life. Avoid staying up late. Reduce stress. Do quit smoking and drinking! Third, pay attention to rest before pregnancy. Avoid staying up late. Prevent colds and fever illness. If there is a fever of 38.5 or more. It may affect the quality of sperm. The embryo development abnormalities. Even fetal malformation. Fourth, the father-to-be in the first three months of pregnancy, try to avoid vaccinations. (Influenza vaccine. Hepatitis B vaccine) Fifth, 3 months before pregnancy. Please do not take prescription drugs. Especially antacids . Treatment of high blood pressure. Medications for heart disease. Please do not take stimulants! Sixth, do not start a new endurance exercise program in the first 3 months of pregnancy. To appropriate exercise. Exercise programs should be within their own acceptable range. Seventh, do not wear tight pants and underwear. Avoid overheating tubs, spas and saunas. In short, you should live the same life as the mother-to-be. Avoid living in newly renovated houses and some harmful substances and radiation. Be well prepared psychologically. Maintain a good and relaxed state of mind.