I can't feel anymore in her abdomen, so how do I know if she's done? I tried to take her out potty, but she didn't want to get up yet.

Bitches tend to settle down with their pups and allow them to feed when they are finished. They also need to be dragged (carried if small enough ;-) ) to go outside to the toilet. They don't want to leave their babies at first, not even to go to the loo ;-)

Congratulations on your babies, what is the final head count?