If you do want her spayed, I think another vet would be willing to do so. There isn't any reason a qualified vet wouldn't spay a female this small, vets spay puppies and kittens (I don't always agree with this, but understand with shelters and such it's necessary), so an adult tiny dog would be no different in terms of any risk. Maybe you could wait a few more months to see if she will grow a little more. I know many yorkies do continue to grow up til about 12 months. My Ruby was either right at or just under 3lbs when she was spayed, with no complications. She had her retained puppy teeth removed at the same time.
It's possible she will still lose her retained puppy teeth over the next month or so. If not though, those retained teeth will have to come out.
As far as gaining weight, if/when she is spayed she will likely gain a little.
Do you leave food down for at all times?
__________________  ~Ruby, Reno, Razz, & Jack~ |