[yoyo27]

You have to research each dogs generations. They can take on all different sizes. Maybe the smallest puppy will end up being the largest from his litter. However typically breeders use a smaller male when they breed. But you do need to do the search down the generations to make sure there isn't larger dogs in there history. You might have a female that is say 5lbs but in her generation they might have had larger dogs. Then its a worry if she will have puppies that she might not be able to deliver. Hope that helps. Sure others will be here soon to help you as well.