The position of the fetus can be roughly known by the position of the fetal heartbeat at 29 weeks, but the fetal position is not fixed at this time and may change quickly. The position of fetal heartbeat is related to the position of the fetus, the cephalic heartbeat is usually below the umbilicus, the breech position is above the umbilicus, and the transverse position is uncertain Auscultation can roughly determine the position of the fetus, and it can be known exactly by ultrasonography. The standardized methods of determining fetal position are mainly ultrasound and obstetric four-step palpation. Before 28 weeks of gestation, the position is not easy to fix because of the relatively large amount of amniotic fluid and the small size of the fetus, which has a large range of movement in the uterus. After 32 weeks of gestation, the fetus grows rapidly and the amniotic fluid relatively decreases, at which time the fetus’ posture and position are relatively fixed. If there is any discomfort during pregnancy, you should seek medical advice and take professional measures.