I breed dutch which the daddy is and Netherland Dwarf which your doe is, never breed them together, the dwarf is the smallest breed of rabbit and the female shoudnt be breed to anything but another dwarf, too much of a size diffrence, your Lucky the doe didnt die, Im not trying to be mean but the have a huge possibility of getting stuck and killing the doe, as you can see in the dead babies they are squished around the mid section, most likely they were to big for her to have them and she had trouble getting them out, so they were either squished to death or suffecated. I too love babies, and will be happy to help you find another dwarf to breed your beautiful doe too.