When did your baby started being position to your canal?

Jocelyn • First time mommy 😍 Due: April 1,2017
Just recently, I got to the doctor. The doctor tried to feel where my baby was position.
For the last two weeks, I've been feeling him laying side to side. When she checked him he was still laying the same. 
My doctor said the next time I visit her, they'll give me ultrasound hows his laying down.
I feel like she don't know what she doing half of the time or she just wasting my time because I got 9 more weeks left. By the time I visit her im gonna be 35 weeks. 
I feel like he wont be position by the time he comes out.
What do I do to make him position on the right timing when he comes out? What do I have to do?