Normally, the fetal heart at 14 weeks of pregnancy is located about two to three fingers above the pubic symphysis. Under normal circumstances, the enlarged uterus begins to extend beyond the pelvis in the 12th week of pregnancy, and as the fetus develops, the position of the fetal heart will slowly move upward, and the position of the fetal heart in the 14th week of pregnancy will be approximately in the lower position between the pubic symphysis and the umbilical cord line. However, the position of the fetal heart may not be exactly the same due to differences in fatness and fetal development. When monitoring the fetal heartbeat at home, it is recommended to find a comfortable and quiet room, slightly elevate the head and relax the abdomen when measuring the fetal heartbeat, and place the probe of the fetal heartbeat monitor in the right position to avoid excessive force. Normal fetal heart between 110 to 160 beats / min, if the monitoring of the fetal heart is too slow or too fast, should be timely to the hospital.