6 weeks is so early these breeders do not want to clean up after them.. I got my female at 6 weeks and she is a scardy cat too early she needed to be with her mommy and siblings longer but they all sold at 6 weeks I did ask if they could keep her longer and they woudl not so I took her I knew I could provide excellent care for her already having yorkies in the house. I sell mine at 10-12 weeks depends on size etcc. I would keep them all till 4 months but then would have a hard time selling them I get too attached.. I do not mind cleaning up after mine, it is all a part of breeding and caring for a litter |