If you are pregnant, how long do you need to wait to get checked?

Patient's question:

If you are pregnant, how long does it take to go to the hospital for a check-up?

Doctor's answer:

Do you need to check for early pregnancy? If so, it only takes about 1 month. 5—6 weeks
　　Through ultrasound examination, the approximate position of the gestational sac in the uterus can be seen. If it is still not visible, there may be a possibility of ectopic pregnancy. If the pregnant woman does not experience vaginal bleeding, it is only necessary to check the implantation site of the gestational sac. If there is vaginal bleeding, it is usually "threatened miscarriage." During this period, if some tissue falls out of the vagina, it should be considered whether it is truly a miscarriage. Additionally, between weeks 5—8 of pregnancy, the number of embryos can be seen to determine if the expectant mother is carrying twins!
　　6—8 weeks
　　Visible fetal heartbeat, yolk sac
　　During an ultrasound examination between weeks 6—8 of pregnancy, the embryonic tissue inside the gestational sac can be seen. If the fetal heartbeat is visible, it indicates that the fetus is currently in a normal state. Additionally, under ultrasound scanning, the yolk sac, which supplies nutrients to the fetus before week 12, can also be seen. This is the fetus's own "snack pack"! If the fetal heartbeat is not visible, the expectant mother can return to the hospital for another ultrasound examination in a few days or a week.