My Lexie Girl was 1.9 lbs at 10 weeks and she is now almost 10 months and weighs about 11 lbs! The breeder said that she would not get over 5 lbs and the vet thought that she would be 7-8 lbs. She seems to have stopped growing (we think!). Lexie is very tall for a yorkie, which makes her weigh more I think. She is definetly not overweight. I guess you just never know how big they will be until they stop growing