Hi everyone! My baby is more than 20 weeks old and weighs 3 pounds 9oz tonight after dinner, but he is already the size of a full grown one, which is 8" tall and 9" long at the back, is this normal? And I don't think he is thin. The breeder said her Yorkies stop growing early, the bone structure is not going to get any bigger, is this true? Or is my scale broken?