If the fetal heartbeat is on the right side, it can only be considered that the fetal back is more to the right of the mother, but it is not possible to determine the fetal position of the fetus in the mother’s womb based on the fetal heartbeat on the right side. First of all, the fetal heart sounds can be heard not only in one position on the mother’s abdominal wall, but also in many places, but they can be heard most clearly near the top of the fetal back. If the head is down, the fetal heartbeat is clearer on the left or right side of the mother’s umbilicus. If the buttocks are underneath, the fetal heart will be clearer on the right or upper left side of the mother’s navel. Therefore, it is not very reliable to know the fetal position by listening to the fetal heartbeat, and further examination is needed.