During the development of the fertilized egg, the development of the fetal heart and embryo is extremely important. If the fetal heart and embryo appear, other organs will gradually form as well. During pregnancy, pregnant women should undergo regular prenatal check ups to observe the fetal heart and pulse. So, why does the fetus have no heartbeats?
Usually, after pregnancy, women can see the fetal heart and fetal buds through B-ultrasound around 8 weeks of gestation. The time of pregnancy for pregnant women should be calculated from the first day of the last menstrual period, which may not completely coincide with the actual time of conception.
If it is a normal intrauterine pregnancy, then under normal circumstances, after about 42 days of amenorrhea, the fetal heart rate and fetal heartbeat can be seen through B-ultrasound examination. But it is also possible that some pregnant women may have their fertilized eggs implanted relatively late and cannot see the pulsation of the fetal heart tube. For pregnant women with irregular menstrual cycles or late ovulation, the appearance of fetal heart rate and fetal buds will also be delayed, but the latest will not exceed 56 days. If there is still no fluctuation in the fetal heart rate after 56 days, it is highly likely that the embryo has stopped developing.
If fetal heart rate cannot be monitored for a long time, it is necessary to follow the doctor's advice. In the early stages of pregnancy, pregnant women may experience miscarriage due to various reasons, so it is important to do a good job of preventing miscarriage in the early stages of pregnancy, which is relatively stable by mid pregnancy. If pregnant women experience lower abdominal pain or vaginal bleeding, it may be a symptom of threatened miscarriage and must be taken seriously.
