Wow that sounds very interesting! As there are alot of dogs that can't get spayed/neutered due to health problems!
My Sahara is one of them...

Congrats on the adorable puppies! I totally know it was completely accidental, but at least you wouldn't do anything awful like try to give them away at Walmart (happens all to often). They are going to have a great home no matter if you keep them, or find a furever home with someone else. Send some pics our way soon!