Purrley,
Why don't you either ask her, or your son in law, who the veterinarian is. Then you could call and confirm that the puppies did indeed get their shots. I can't imagine 3 sets of shots already on a new puppy though. But, don't trust me because I can't remember!! LOL! I just remember that when mine were puppies, we had to keep going to the vet for a while for those series of shots.
Logan