She can't have her shots while she is pregnant. You can bring her inside, but it would be ideal of she and the kittens could stay seperate from your other kitty. If you have a large house this might not be a problem, but if it is, since your indoor kitty has had her shots the risk of her catching anything from the outdoor kitty would be minimal. Jazzie would probably be more comfortable having her babies in an isolated area away from Maddie, too, though, so seperation, again, is ideal if possible.