Do "chubbier" women show quicker?

Julie • 20 years old. Proud momma to a baby boy and pregnant with baby #2!! Due January 2017
I'm 5'2 and pre pregnancy I was quite thin. I've struggled with bulimia for 3 years. Though I was thin I have what I call bulimia stomach sag. Just extra fat around my belly😶 so do chubbier bellied woman show quicker? I'm 10 + 2 and nothing fits me now lol.