when was everyone's first ultrasound

Bri • Married and mother to babygirl💓
I'm 7 wks 5 days and I went to the obgyn and she told me she doesn't want to give me an ultrasound until next month when I'll be 12 weeks . She said this is normal but I've seen everyone else on here get their ultrasound at 6 wks . When I had sharp pains two weeks ago, she did give me one which showed the yolk and everything in place but the baby was too small. They said since they seen that they know everything is placed right so they don't see a reason to get an ultrasound until 12 weeks . Is this typical ?