Big belly and a sleepy Chihuahua! - I'm 29 weeks, and my belly button hasn't popped out yet. Some…

Big belly and a sleepy Chihuahua! - I'm 29 weeks, and my belly button hasn't popped out yet. Some days, especially after working a long shift, it looks like it may, but then it goes back in. Has anyone had their belly button never pop out? I hope mine stays in... Haha.