Pregnancy checkups are usually 8-11 times, basically once every 4 weeks before 36 weeks of pregnancy, and once a week after 37 weeks, so there is no special condition of pregnant mothers, each pregnancy checkup has the same items and different items, for example, each checkup includes weight measurement, blood pressure measurement, and after the middle of pregnancy, you also have to listen to the fetal heart sounds. The first pregnancy checkup has more items to assess the health condition of the pregnant woman, such as heart function, liver and kidney function, routine gynecological examination to see if there is any inflammation of the reproductive tract, and each subsequent pregnancy checkup also assesses the development of the baby in the womb; NT test is done at 12 weeks of pregnancy to rule out malformations in early pregnancy; 4D ultrasound is done at 20-24 weeks to rule out malformations in the middle stage; Screening for diabetes during pregnancy should be done between 24-28 weeks. Pregnant mothers with special conditions, such as women with certain comorbidities and complications, such as gestational hypertension, gestational diabetes, placenta praevia and scarred uterus, should schedule their maternity checkups according to their specific conditions and the specific guidance plan given by their doctors.