I've been debating whether or not my belly button is going to pop out during this pregnancy, and I'm pretty sure it will.
All the stretching can cause many or most womens' "innies" to turn into "outies"- at least temporarily. I have an innie belly button, and it's fairly deep so I wasn't sure it would happen. It's still deep but I can actually see the bottom of the button where I haven't before. So I'm betting it's a matter of time.
TMI? Hey, I'm not talking about the gas and constipation, just belly buttons.