One month of pregnancy is 4 weeks, and the whole pregnancy period is 10 months, so 28 weeks of pregnancy is 7 months of pregnancy. The month of pregnancy is not calculated by 30 days, but by 1 month and 28 days, so 4 weeks is 1 month. Therefore, at 28 weeks of gestation, which is the 7th month of pregnancy, the fetal organs and systems have become well developed and the fetus has a relatively strong ability to survive. Starting from 28 weeks of pregnancy is late pregnancy, the fetus enters the perinatal period, for the best time to detect the fetal position, antenatal checkups need to be done every 1 month. Starting from 28 weeks of pregnancy, you should start to pay attention to the fetal movement, which should be no less than 3-5 times per hour. If the fetal movement is >10 times per hour, you need to be alert to the occurrence of intrauterine hypoxia. During the late pregnancy, pregnant women should pay attention to exercise more to enhance the body resistance. At the same time, reduce the chance of colds, diarrhea and other diseases, pay attention to more rest and avoid collision with the abdomen.