Maybe a dumb question

Madison

Okay, maybe I’m stupid but I’m a FTM and I’m confused about something.

I keep seeing everyone say it’s normally to only get 2-3 ultrasounds during a low risk pregnancy which I 100% understand, but I also see people saying that doctors don’t typically worry about baby being breach until 36ish weeks.

So I guess my question is: how do they know for sure if baby is breach without an ultrasound? Am I completely missing something?🙈🥴