Fetal heart rate of 137 beats per minute has the same chance of giving birth to a boy or a girl. There is no scientific basis for judging a boy or a girl based on the number of fetal heartbeats, and the fetal heart rate can only be used to determine whether the child is suffering from lack of oxygen in the uterine cavity and whether it is normal or not. Normal fetal heart rate is 110~160 beats per minute. If the fetal heart rate is less than 110 beats per minute or more than 160 beats per minute for more than 10 minutes, it may be a sign of abnormal fetal heart. Abnormal fetal heart rate indicates that the fetus may have hypoxia, abnormal fetal heart rate or congenital heart disease. There are many factors that affect the fetal heart rate, such as the diet of the pregnant woman and her emotions. Drinking strong tea, coffee, chili, curry and other stimulating foods will lead to fetal heart abnormalities, low mood, anger, insomnia will also affect the fetal heart. During pregnancy, pay attention to a light and balanced diet, maintain good sleep and a good state of mind, and avoid great joy and great sorrow and emotional fluctuations, all of which may affect the fetal heart rate. If you have an abnormally high or low fetal heart rate, you should consult a doctor in time to avoid affecting your baby’s health.