Fetal Heart 158 cannot tell if it is a brother or sister, and fetal heart rate has nothing to do with gender. Fetal heart monitoring is a routine test during pregnancy and is a primary means of determining the health of the fetus in the womb. There are certain standard values of fetal heart at different times of pregnancy, and the normal fetal heart is 110-160 beats per minute. Through regular measurement monitoring and comparing the fetal heart value with the standard value, you can understand the condition of the fetus. If the fetal heart appears abnormal, further review is needed. Fetal heart value has no relationship with gender and cannot be used to determine it. ultrasound, amniocentesis, DNA blood test are methods to determine gender, but China explicitly prohibits testing the gender of the fetus, as long as it is on time for the maternity checkups to ensure the health of the fetus.