The number of pregnancy checkups and items vary with the growth of pregnancy cycle: gestational weeks and checkups 1. 6-7 weeks of pregnancy: belongs to early pregnancy, ultrasound examination is needed to determine whether the pregnancy is intrauterine, whether there is fetal heart, fetal bud, etc., and blood and urine routine, liver and kidney function, blood sugar, blood type, A function, ECG, and whether there are infectious diseases, etc., and to build a file and ask 2. 12-28 weeks of pregnancy: review every 4 weeks, the first checkup will be performed at around 12 weeks, NT and routine examination; the second checkup will be performed at 13-16 weeks, mainly Down’s syndrome screening; the third checkup will be performed at 17-21 weeks, ultrasound and other routine examinations, and prenatal diagnosis will be required for high-risk pregnant women; the fourth checkup will be performed at 22-24 weeks, mainly screening ultrasound; 25-28 weeks The 5th checkup will be conducted, mainly for gestational diabetes screening and ultrasound secondary screening; 3. 28-36 weeks of pregnancy: the checkup will be conducted every 2 weeks, and the 6th checkup will be conducted around 30 weeks, mainly for routine examination; the 7th checkup will be conducted around 32 weeks, mainly for ultrasound examination, assessment of fetal weight in the abdomen and completion of the first pelvic measurement; the 8th checkup will be conducted around 34 weeks, mainly for fetal heart monitoring examination. 4.After 36 weeks of pregnancy, the 9th checkup will be held at 36 weeks of pregnancy, mainly to prepare for the delivery, improve the laboratory tests and perform GBS and fetal heart monitoring; the 10th checkup will be held at 37 weeks of pregnancy, which requires ultrasound examination to assess the size of the fetus, pelvic measurement again to decide the mode of delivery and fetal heart monitoring; from 38 to 40 weeks of pregnancy, the checkup will be held once a week until delivery. If a pregnant woman has other comorbidities or complications, the number of checkups and other related items should be increased appropriately. Pregnant women should actively cooperate with the doctor’s examination and treatment, and also develop good habits in daily life, adjust the diet structure, ensure balanced nutrition and control weight gain appropriately.