Pregnancy preparation usually takes 3-6 months of preparation. With normal fertility, couples can usually conceive within 1 year of having normal sexual intercourse. However, before pregnancy, it is recommended to prepare for pregnancy 3-6 months in advance in order to ensure a healthy baby and achieve eugenics. During the preparation period, both men and women need to make the following preparations: 1. Pre-conception checkups: Women focus on gynecological examinations to determine whether there are problems with hormones, ovaries, uterus, fallopian tubes, gynecological diseases, diabetes, hypertension, etc. Men need to determine the presence of underlying diseases, the viability of sperm, normal testicular development, etc. Both men and women need to determine whether there are genetic diseases, chromosomal abnormalities, infectious diseases, etc.; 2. adjust the physical state: it is best for both men and women to adjust their physical state 3-6 months in advance to provide a good environment for the growth and development of the embryo, adjust the work and rest time, go to bed early and wake up early, avoid staying up late, avoid endocrine disorders, quit smoking, alcohol and caffeine-based substances in advance, exercise properly, enhance physical fitness, improve body resistance The body should be properly exercised to enhance physical fitness, improve body resistance and immunity, and prepare for pregnancy. Under the guidance of the doctor, take folic acid in appropriate amount every day to prevent fetal neural tube malformation, and eat a diet rich in iron, calcium, high quality protein, vitamins and minerals.