Skin pain from stretching

I had a naval ring for many years, which I removed when we got pregnant.  Now I am 37 weeks and my belly seems to be stretched as far as it can.  I have been feeling a lot of pain in the bottom part of the naval peircing scar, Feels almost like the scar is ripping as my belly button protrudes.  Had no idea this would be happening when I pierced my belly button.  OUCH!!