The existence of a new life is both exciting and worrying for pregnant women, when the most worrying thing after determining pregnancy is whether the fetus has a fetal heart, in general, there are several reasons why the baby does not have a fetal heart: early pregnancy, many pregnant women are not found fetal heart, the reason may be the difference between the menstrual cycle of pregnant women, the time of conception and the development of the fetus, in general, about two months of pregnancy can detect the fetal heart. If the fetal heart is not detected in the early pregnancy, you must wait 1-2 weeks to check again or change to a more authoritative hospital, if the fetal heart appears after 2 weeks, you should re-evaluate the fetal pregnancy week according to the size of the fetus and project the expected date of delivery, if there is still no fetal heart, it is likely that fetal arrest has occurred, so listen to medical advice and cooperate with the The good doctor should pay attention to the body conditioning. In the late pregnancy, the fetal heart cannot be checked for abnormal fetal development. As the fetus grows, its size gradually increases and its movement in the uterus is restricted, it is easy to have various accidents, such as the umbilical cord wrapping around the neck or other conditions that cause fetal hypoxia and other conditions. In addition, pregnant women may have some adverse conditions in late pregnancy, such as gestational hypertension, amniotic fluid deficiency, etc., which have a certain impact on the growth and development of the fetus, and can also cause the disappearance of the fetal heart. Anything can happen to a woman during pregnancy, and it is important to go to the doctor in time to listen to medical advice.