Three months pregnant, the fetus has not yet developed, but the fetal heart is still there.

Usually women can see the fetal heart in about 50 days of pregnancy. If there is no fetal heart after three months of pregnancy, it is necessary to consider that the fetus may have stopped. The causes of abortion are female endocrine disorders, fetal chromosome abnormalities, poor living environment, and female uterus suffering from certain diseases. However, no matter what causes the fetal heart to be invisible for three months, abortion surgery should be done as soon as possible, otherwise it will be very harmful to health.

Usually, you can see fetal heart germs around 6 weeks of pregnancy, but it also has a certain relationship with women's menstrual regularity. At the latest, after 8 weeks of menopause, fetal heart germs can be seen. If there is no fetal heart for three months, pay attention to the possibility of fetal arrest. The main reasons for fetal arrest are as follows:

1, chromosome abnormality, chromosome abnormality is the main cause of fetal suspension, which means that the embryo itself has this defect, so there will be cases where the embryo cannot develop normally.

2, pregnant women endocrine disorders, endogenous hormone secretion in the body is insufficient, can not meet the needs of embryonic development, it may cause embryo abortion, which will directly lead to abortion.

3. There are abnormalities in the uterus, such as endometriosis, hysteromyoma, cervical adhesion, or too thin and thick endometrium, which will affect the intrauterine environment and have a negative impact on embryo development.

4, the influence of environmental factors, such as women in a polluted environment for a long time, may cause early embryo abortion, even normal pregnancy may also lead to fetal malformation.

These are the reasons why you can't see the fetal heart after three months of pregnancy. If you can't see the fetal heart after three months of pregnancy, you must seek medical advice in time and choose the appropriate abortion method according to the doctor's advice to avoid the embryo staying in the uterus for too long and causing more serious harm to the body. In addition, it is suggested to develop good living habits, do not smoke or drink, pay attention to rest, increase nutrition in diet and maintain a good mood.