I went to a Petsmart yesterday and there was this couple there that had a yorkie pup. I have two of my own and have done my share of research on yorkies. Anyway, I asked about his pup and he said she was 12wks old and not going to get any more bigger because her mom was only 2LBs. I gave him this weird look, but I was hesitant to tell him becuase I was not sure if i would offend him or not. But isnt it true, that it's not possible to breed a 2lb female because there is a possibilty that they cannot handle giving birth because of their size?