How big is the gestational sac at 6-7 weeks of pregnancy?

Patient's question:

No

Doctor's answer:

In this case, it is recommended to go to the hospital for a follow-up check-up after one week. Generally, the first ultrasound examination is performed at the hospital 50 days after the menstrual period. If the menstrual cycle is regular, a gestational sac, primitive cardiac pulsation, and fetal bud can be observed.