38 weeks of pregnancy is 266 days. The pregnancy cycle is calculated from the first day of the last menstrual period, the whole pregnancy period is 280 days in total, and every 4 weeks is 1 month. By 38 weeks, the fetus is full term and may deliver at any time. It is recommended that pregnant women should prepare for delivery and await delivery, and should also pay attention to the following aspects: 1. moderate exercise: moderate exercise can promote fetal descent and help to deliver smoothly; 2. supplementary nutrition: at 38 weeks of pregnancy, pregnant women are advised to eat more nuts, soy products, beef, mutton, etc. to supplement high quality protein, as well as fresh vegetables and fruits to supplement vitamins to promote Fetal growth and development, increase the physical strength of the delivery; 3, avoid sex: 38 weeks of pregnancy should try to avoid sex, sexual stimulation is likely to cause premature rupture of fetal membranes; 4, monitor the fetal heart and fetal movement: the normal fetal heart is 110-160 times per minute, fetal movement is 3-5 times per hour. If the fetal heartbeat and fetal movement are abnormal, you should go to the hospital in time, and if necessary, terminate the pregnancy; 5, timely maternity check: after 38 weeks of pregnancy, it is recommended that pregnant women have a weekly maternity check to prevent problems with the fetus; 6, other: if there are irregular contractions, fetal descent feeling, redness, indicating the imminent clinical state, pregnant women should go to the hospital in time for delivery. In addition, if bleeding vaginal bleeding, should also be alert to the occurrence of placenta praevia or placenta abruptio.