i woiuld think I would deffintly think that with yorkies and all small dogs that the babies should stay with there mommies for atleast 12 weeks after birth , not only because they are so small but also because they need more care then most dogs , because they are so so so fragile , I would keep them 12 weeks but start advertising sooner that way you have time to screen the buyeers to make sure the little ones are going to a great loving wonderfull home |