My mommy dog does not want to leave her cage even to go potty. 
Did you try to pick her up and take her outside?
Can't pick her up with how low the cage is and how big she is, I just have to pull her out- She goes to the back of the cage. It's getting on my nerve a bit to have to take all my strength to drag her out everyday. Phew :( Good for my arm muscles I guess
You should try and use a toy or something to get her to chase dogs love those.
Nope- She has a baby in there.She does not want to go- She fights me the whole time. So frustrating.