We have 2 purebred Great Pyrenees that we breed. We are about to hopefully have our third batch of puppies next month. We breed every 8-9 months. We waited until our female was over the age of 2 before breeding as GPs are large dogs and aren't fully grown until 2 years old. This was advised to us and we have felt it was good advice as our female has not had any issues with her pregnancies or her health. Puppies are so much fun and something the kids will enjoy. After the initial 2-3 days we put our older girls (9&12) in charge of puppies. They do a majority of the work with some guidance from us. When the puppies sell we give them each $5 for each puppy. It is a nice reward for their labor!