I don't understand? What do you mean by low and closing in? Mine is Flat and has gotten a TINY bump in it like an outie starting. but that's all.
I am also confused at what you are asking. When I was pregnant my belly button popped out completely from the time I really began showing. I am not sure what you are saying but anything is possible espically when it comes to pregnancy.
I mean that instead of having my belly button completely open like before I got preg. It's became a little circle and like closing in. It's has not poped out or anything else just I see it like a tiny penny. This is the best way for me to describe it . Thank you
mines flat, and starting to pop out...
When I was pregnant with my13yr old boy, it turned inside out completely and you could see it thru my clothes. I wouldn't worry, our bellies strech insanely during pregancy which make our belly buttons look really wierd. Our bodies just adapt to the changes naturally.
Also your back pain has nothing to do with your belly button either.