Fetal heartbeat and fetal buds can usually be detected at 6 to 7 weeks of menopause.
Women can form fetal buds around 6 weeks after menopause. Fetal buds are embryos before they develop into a fetus, which may be as little as 0.3~1cm at the earliest, and gradually grow into a fetus. The fetal heart usually forms around 6~7 weeks, and a visible fetal heart means that the fetus is alive.
At around 6~7 weeks of menopause, transvaginal or transabdominal ultrasound can be used to find out if there are fetal buds and fetal heartbeats in the uterine cavity to help clarify whether the pregnancy is normal.
If there is no fetal heartbeat after 8 weeks of menopause or only fetal buds are seen without a fetal heartbeat, fetal arrest may be due to cessation of growth and development of the embryo. Laboratory tests such as blood HCG and blood progesterone, ultrasound examination, etc. are needed to clarify whether the embryo has stopped developing, and if the diagnosis is confirmed as embryonic arrest, the uterus needs to be cleared in time.
During pregnancy, it is necessary to do a good job of obstetric examination to know the fetal heart, buds and the development of the fetus, and if there is any discomfort, consult a doctor in time.