You will more than likely have a c section.

What do their papers say? If they are not AKC then you are getting mutts no matter what. You really REALLY need to talk to the vet about this because "apple headed" and a lot of other toy breeds have LOTS of problems when they whelp.

I am not saying this to discourage(well yes I am) you but when I worked at the vets office it was the most disheartening thing to see these dogs coming in for C sections and DYING because the owner waited so long to get help.

Why do you want to breed? Do they have papers, did you show them, will it make your dogs breed better?

Are you willing to have your dog DIE during labor and delivery just to get some cute puppies. If you don't know the basics about breeding you really shouldn't even think about it.