The determination of the position of the fetal heart is related to the cycle of pregnancy and the position of the fetus, and it is necessary to determine the position of the fetus according to the cycle of pregnancy before searching for the fetal heart. The position of the fetal heart is not fixed in the early stage of pregnancy; in the middle stage of pregnancy, the fetal heart can usually be found in the uterine fundus and the position between the pubic symphysis; in the late stage of pregnancy, the position of the fetal heart can be determined according to the position of the fetus; for example, if the fetus is in the cephalic position, the fetal heart is usually located in the lower left or the lower right of the umbilical cord as a boundary. 1. Early pregnancy: women in the early stages of pregnancy, the fetus in the uterine cavity is more active, the position of the fetal heart is relatively difficult to determine, you need to find under the guidance of the doctor. 2. Mid-pregnancy: In mid-pregnancy, it is usually possible to locate the fetal heart at the base of the uterus and between the pubic symphysis. 3. late pregnancy: women in late pregnancy, the fetus is in the head position, the fetal heart is usually in the navel as the boundary of the lower left or lower right; the fetus is in the breech position, the fetal heart is usually in the upper left or upper right of the navel position; the fetus is in the transverse position, the fetal heart is usually in the umbilical cord around the fetal heart, the fetal heart conduction is relatively good. During pregnancy, you should follow the doctor’s instructions to take obstetric checkups on time, and if you feel unwell, it is recommended that you go to the hospital in time and follow the doctor’s instructions to deal with the treatment.