Honestly, I'd be very patient with such a small pup. I've seen some breeders keep their tiny puppies even up to 16 weeks. The longer the puppy spends with the mother and litter mates, the better it will be for the puppy by learning many things such as bite inhibition, etc. I know it's tough because you want to hold your baby right now, but it's certainly in your baby's best interests!
Just keep visiting her and by the time you know it, she'll be home in your arms!
