My belly button has never really popped out during pregnancy. The closest it came was with the triplets, which is understandable since I was bigger with them that I will ever be again. Even then, it was just sort of half-raised a very little bit. With Liam, it just got a little shallow. This time, I can see it trying to invert a little, but only because of the scars from the surgery. I can see in places where the scar line has moved out a little bit, and in one spot it has a little raised lip inside that scar line.