Your baby is so cute! My Biggie is 7 months and currently weighs 8.5 pounds. I was concerned of his large size at first, but after reading about Teapots on YT, I realized that Yorkies do come in all sizes. The smaller Yorkies are cute, but so are the larger ones...they are just a bit more sturdy than the smaller ones that's all. Below are pics of Biggie. As you can see he is just like your baby, 100% Yorkie.
http://i203.photobucket.com/albums/a...Picture254.jpg http://i203.photobucket.com/albums/a...Picture270.jpg