Usually, the first labor and delivery test of pregnancy is at 6~7 weeks as a way to find out whether it is a normal intrauterine pregnancy. The first maternity test after pregnancy mainly includes infectious disease examination, progesterone, human chorionic gonadotropin, folic acid gene metabolism test, ultrasound examination, etc. The first maternity test is usually conducted around 6~7 weeks of pregnancy to confirm normal intrauterine pregnancy and whether fetal heartbeat and buds are visible. At around 12 weeks of pregnancy, a documented NT test is performed, among other things. Maternity checkups are designed to monitor the physical condition of the woman and the fetus in a timely manner and to prevent complications, etc. Checkups are usually performed every 4 weeks before 30 weeks, every 2 weeks after 30 weeks, and every 1 week after 36 weeks. If there are any special circumstances, it is necessary to follow the doctor’s instructions for maternity checkups. During pregnancy, women should pay attention to a balanced diet, avoid staying up late, take 0.4-0.8 mg/day of active folic acid according to the results of the folic acid gene metabolism test at an early stage, and go to the hospital for obstetric examination on a regular basis.