Thanks for the help. I called the vet and everything is ok. She has 7 puppies now that are doing great. The vet told us that sometimes a puppy can die for some reason or another. She told us that everything is going how it should with regard to the intervals and she isn't stressed or anything, she's actually doing really well. The vet told me that she was doing really well and that she didn't think the shot was necessary, so we didn't end up giving it to her. I guess I was just nervous because this was my first time ever doing this and I didn't want to mess things up. I think she may be done having puppies, but I am still monitoring things very closely. Again thanks.