Plus size ultrasound

Erica • We have a 12 year-old boy, an angel baby, a boy born February 28th 2016 and another coming June 2017!
I have this stupid flap of skin after my son and now I'm curious as to how an ultrasound is done... Does the doc have to kinda go under it? (Not bad if I'm laying) I'm nervous it'll be hard to see my baby.