My cat is in labor, but she has already had two cats still born in the sac and not moving. Is their any way to save the kitens and make sure my cat is still okay?

Take your cat to the vet as soon as possible.

I'm too late now but Unkies advice is spot on, the only thing you can do is get her to the vet.

Did you break the sacs open when they were born?
Stimulate breathing?