
They are all different - even with different litters! I had one who would 'pee ' her puppies, but would have nothing to do with poohing them - well beneath her! As a result, apart from my best efforts (and eventually gravity!) the poor mites must have spent a lot of time being really uncomfortable. I'd sit them in warm water to help, which, to some degree, did. The other thing with her was she'd do her duty, feeding them, but then wanted out but once let out of the box, after I'd got the puppies to settle down for a nap after a feed, she'd sit outside and whine at them, waking them all up again. It was a good job she gave me a couple of really nice puppies BUT that was her only litter! Some bitches just find the whole thing too much, and some find it hard to switch off being a pet, to being a mother.
Did you have her checked to make sure she was empty after you felt she'd finished whelping? Being restless can be a sign all is not as it should be (retained birthing material, or even a puppy).
I also think that regardless of what 'she wants', you might get her out to stretch her legs a bit more often than just twice a day?
And people think we ask a lot for our puppies - doing a litter can be HARD WORK! Much as it would be hoped that through the first 3 weeks, with a good mum, your work doesn't begin until her's starts to end (weaning!).