Last year I had to upgrade from a size medium scrub pant to a large. It was a massive blow for me. For a few weeks I had to take a few minutes to tuck in my belly roll, eventually giving up and buying a large. Even while pregnant with my last kid, I was still able to sport a medium so this was a pretty big blow.
However, today I went to put on a medium, just to see, and guess what? I didn't have to physically tuck my tummy fat in !!! Woo-ooo!