Okay...spoke to my girl's vet and two others. They all say that there is no such thing as a "morning after" shot for dogs

Maybe they don't have them in CA? According to all, I just have to wait and see. I can go in at around 26 days to see if she actually has any pups in there. They also say that it doesn't matter how young she is. If she's gone into heat she can have puppies, it's just the matter of the size of the pups that is the risk. I still think she's a baby though. I guess I just have to wait it out