Hi brian, as if you haven't enough on your plate already what with your wife being sick and pregnant, now your pups! Well, its nothing that your wife has passed on, dogs can't catch anything from us like that. Your dogs have picked up a germ from somewhere and it sounds as if its a 48 hour thing as the little boy is on the mend, albeit slowly! Well done for booking the vets for tomorrow, its always best to be on the safe side. You've done your best to keep them hydrated and i'm certain thats helped a great deal, especially with the sickness. They'll be ok i'm sure of it, stop worrying, the vet will put your mind at rest. Good luck with the puppies and congratulations on the pregnancy, i can tell you're going to be a great dad, you've got compassion for your pets and you care.