In early pregnancy, pregnant women cannot feel the fetal heartbeat and buds on their own, and ultrasonography is needed to make this clear.
Women with regular menstruation can see the gestational sac in the uterine cavity on the 35th day of pregnancy, and thereafter, with the continuous growth and development of the embryo, the fetal buds and the primitive heart tube can be seen on the 42nd day of pregnancy. At this time, the gestational sac is very small and inactive, therefore, pregnant women in the early stages of pregnancy cannot sense the fetal heart and fetal buds on their own, and they can only be clarified through ultrasound examination.
Some pregnant women still do not see the fetal heart buds on the 42nd day of pregnancy, if the gestational sac has been deformed, the blood progesterone and human chorionic gonadotropin level is lower than the normal level of the same pregnancy, suggesting that the embryo is underdeveloped, and the pregnancy should be terminated as soon as possible; such as the gestational sac morphology of the size of the normal, the blood progesterone and human chorionic gonadotropin level is normal, you can observe the changes in the condition for the time being.
If the results of obstetric examination are abnormal, pregnant women should seek medical treatment as soon as possible to avoid delaying the condition, which may lead to adverse consequences.