Belly Button Meter

I had (and I stress had) a very deep belly button my whole life. All of a sudden, I've realized that my belly button has become a great gauge for the growth of my baby bulge. Each day it feels just a little more shallow and just a little more firm. I'm guessing that it's slowly turning from an in-y to an out-y. I don't know why I thought that would happen all at once, but it appears to be a slower process. Hopefully, I can get some pictures up soon!