How frequently should a pregnancy check-up be done?

The prenatal check-up schedule is as follows: once every four weeks before 28 weeks of pregnancy, once every two weeks after 28 weeks, and once a week after 36 weeks. This allows for a clear understanding of the baby's growth and development. The normal range of progesterone levels during the early luteal phase is 1 ng/mL, during ovulation it is 5 to 20 ng/mL, in early pregnancy it is 20 to 30 ng/mL, in the second trimester it is 50 to 100 ng/mL, and in the third trimester it reaches 200 to 300 ng/mL.

The prenatal check-up schedule is as follows: an initial check-up during early pregnancy, followed by check-ups every four weeks from 20 to 36 weeks of pregnancy. After 36 weeks, check-ups should be performed weekly, totaling approximately 9 times. For those with high-risk factors during pregnancy, the frequency of prenatal check-ups should be increased. Special prenatal check-up items include: B-ultrasound NT screening between 11-13 weeks and 6 days, Down's syndrome screening between 14-20 weeks, gestational diabetes screening (OGTT) between 24-28 weeks, four-dimensional B-ultrasound screening between 22-26 weeks, and three-dimensional B-ultrasound screening between 30-32 weeks. The main items of prenatal check-up include inquiry about medical history, general physical examination, measurement of uterine height and abdominal circumference, fetal heartbeat monitoring, and necessary related laboratory tests.

Reasonable exercise during pregnancy is beneficial for the healthy development of the fetus. It is recommended that pregnant women engage in outdoor activities for at least 30 minutes per day, with the amount of exercise tailored to avoid fatigue and avoiding strenuous or heavy physical labor. Activities such as walking, prenatal yoga, and gymnastics can be chosen based on individual preferences and conditions.