it depends on the breeds its mixed with
if it is a mixed breed great dane it can have puppies at the age 6 months and up but if it is full grown it can only have puppies at the age 1 year and up.
It shouldn't be dangerous, although I'm not sure why you would want to cross these two dogs - the puppies will be "mixed breed" and not really valuable.
No, for two reasons. First, the pitbull is a distinct breed, so crossing a toy poodle with a pitbull would result in mixed-breed puppies, not pitbull puppies. Second, and probably more importantly, toy poodles are much smaller than pitbulls, by a factor of 8-10x. It would be close to impossible to breed a male pitbull to a female toy poodle, and the fetal-maternal mismatch in sizes would likely result in difficulty during birth or even death of both the mother and the puppies.
Free as it is a mixed breed. Besides shelter fees (which always include spaying/neutering and shots) you should *never* pay for a mixed breed or designer dog. You would be supporting backyard breeders who breed inferior dogs for a profit, while great "accident" and purebred puppies and dogs die from euthanasia every day due to overpopulation.
You have to have to different types of dogs, say a boxer and poodle(not what I would suggest, it just came to mind). They have to be a boy and a girl, it doesn't matter which is which. Breed them, so that would make their puppies half boxer, half poodle. If you were to breed a half German Shepard half cocker spaniel with a pure bred pit bull, the puppies would be a quarter German Shepard, quarter cocker spaniel, and half pit bull. Not much else to explain.
It would get little puppies inside her.
Papers don't matter when you are breeding dogs. The only problem you will have is registering the puppies.
A purebred dog or puppy that doesn't have a pedigree, is still a purebred, and still could command a higher price than a mixed breed dog. A mixed breed puppy might be any price price ranging from free, to whatever the seller would like to ask. Mixed breed dogs and puppies can be found in newspaper classified ads and animal shelters. Mixed breed dogs are every bit as loving as their pure-bred cousins, plus they're usually healthier. Animals adopted from a shelter might cost $40 or more, but the fee covers the vaccines the puppy has already received, and spaying or neutering.
This would depend on its breed.
The best place to start would be a website such as Pure Bred Puppies or Puppy Find. General information about this breed of dog can be found at Dog Breed Info.
It would bring a good breed indeed.
Species breed within their own species. In fact, it would be impossible anatomically for cats and dogs to inter-breed. So cats birth only kittens; dogs birth only puppies.