they dont. they can and willl till the day theey die
It depends on how many times they have gotten ... screwed...
When considering breeding, wait till your dog is AT LEAST 15months old for small breeds and 20months for large breeds. You want your dog to be %100 physically and emotionally mature (you will be able...
5 months
for healthy pups two years and can only breed once a year (skip one heat cycle) put if that doesn't matter four months.