Are you being treated by a vet?
Cuz if so, I would have them take xrays to see if there are eggs.
Based on her current physique, she wont be able to dig a proper hole, and may not even be able to lay properly.
She could have eggs, but I cant tell for sure.
if you aren't using a vet, you need one. NOW.
MBD at this advanced stage is very hard to treat, even for experienced cham owners.