You can take the high road and use this as an opportunity to educate others. It sounds like your baby is perfectly within yorkie standards of 4-7 pounds. Perhaps it's their babies that have been breed by these breeders trying to create tiny tea cups. Maybe some of these rude folks need to understand that they may be the one outside of the boundaries---
I can say that
Roxie is only 3 1/2 pounds so she's below avg. I guess