Mother’s Apron & Pregnancy

I have a mother’s apron (the overhang of your belly). I developed this after the birth of my second child because I had gained quite a big belly and I had a c-section. I’m pregnant again, a little over 17 weeks. Because of the mother’s apron, it’s hard to distinguish my bump from fat. The top part is a bit more firm that the rest, but it’s hard to distinguish my bump from pre-pregnancy fat. Anyone else have this issue?