How many days does it take for a fetus to have a heartbeat

Patient's question:

No

Doctor's answer:

Under normal circumstances, a gestational sac with fetal heartbeat can be observed on ultrasound at 7-8 weeks of pregnancy. From the ultrasound results, the size of the gestational sac is only as large as that of a pregnancy in the 30s days, combined with vaginal bleeding, it is necessary to consider the possibility of missed miscarriage, which is also known as embryonic arrest.