How soon can a rabbit get pregnant again after giving birth? I found 5 dead baby bunnies on the floor of the cage with my supposedly all female rabbits. Well... I found out which one is the boy and they are all seperated now. My question is how soon after giving birth can she get pregnant again? I don't want any more surprises... should I just put a nest box in when it is time?, or does it take more than a few hours for them to be able to mate again? There was about a 12 hour window (max) between birth of the babies and when I seperated them.