Thanks for all the great help people We now have a nice new cage and it works out well coz it's pink for her and our old one is blue for Gizmo haha :L
From what I can see they've just been sleeping while I've been out, it's sad seperating them but like you all say whether little Gimli is a boy or girl they still need seperating as there is quite clearly a problem so thanks for all your advice and information with that (:
The idea about keeping one boy and one girl if she is pregnant is a good idea, so if she has fallen pregnant atleast that's some good news and I'll be able to give the rest a lovely home with someone else too!
I'll look out towards the end of the month for signs of birth and I'll check her weight and behavior over the next few weeks too!
Here's a picture of the little girl
Thanks everyone for all your help (:
Hannah x