Quote Originally Posted by CathyBogart
The vet was correct in that there is no accurate way to tell for certain she's pregnant until the puppies are a certain age inside of her. Even ultrasounds won't work before she is....(Dangit, I don't have my notes with me, but I had this in lecture YESTERDAY) at least a few weeks along. When I get ahold of my notes tonight I can put up more info.

I think it's 50-53 days before the pups show up on an x-ray. I don't know about ultrasound as we don't have one of those where I work, we refer people out for those.