My biggest concern would be the lack of vaccines for either puppy. If you're going to bring them home at the same time, I would keep them separated at least until their first vet check. The only thing worse than having 1 puppy with parvo, would be having 2 puppies with parvo and I believe it can take up to 10 days for symptoms to start after exposure so one could be exposed before you pick it up and not get sick until it's been at your house for a while. Enjoy your new babies.
