Ok, well two out of four are trying to throw up now. The vet called us back and stated that we really should NOT bring them in to her. She said that the Mother may have ate something and that is upsetting the puppies little tummies. No outside dogs have came over and the Mother has nothing wrong with her teats so this could very well be the problem. She said that to drive them to her and back home tonight could actually be worse on them than just leaving them alone. So... we are to keep them on their heating pad and watch them. Only if they get worse are we to then to bring them in. She said not to try to feed them anything as this may upset the tummies even more. So at least we know that much even though that will not help relieve my mind! I will be up off and on all night! The joys of breeding...you really have to love it to make it all worth it and I do!!