I got Tila in May. Shes six months old. She weighs 4 pounds. Every puppy is different, could be going through a growth spurt. Tila gained two pounds since I've gotten her, she's 100% healthy, runs around, eats whenever she wants. She gains her weight steady, like around 4 ounces a week since I had her. If your puppy gets to be 6 or 7 pounds, thats still little. I have another dog he's 2 and hes a terrier mix, he's 8 pounds. He still looks small as well, he's just got looooong legs. As long as your baby is healthy thats the best thing. And as I said before every puppy is different, if you read some older posts you'll see a lot of weight differences at that age.
