What do i do if my iguana isnt eating?

My iguana isn't eating, I just moved from nevada to oregon, had lived there for two years and just moved back. No matter what I give her, she won't eat, she usually goes bezerk for bananas, and for olives and she doesn't want either. I read that she could be gravid, what am I supposeo do with her if she is greavid. She's 7 years old and has never done it before. Shopuld I take her to the vet to get her ex rayed? There isn't a male around so she won't have babies.