Ultrasound ???

I got an ultrasound today and baby measured 8 weeks. But wouldn’t I have seen at least the head and legs and arms? I didn’t see any of that but heart rate was 165.

They said that circle is the yolk sac then next to it is the baby.

Can I see yalls 8 weeks ultrasound??? Should I be worried . They also did a regular ultrasound NOT vaginal can that be why???