I have a dutch rabbit that is 20 days pregnant. She has given birth before, and now this is her second litter. This pregnancy was an accident as she and her nephew (sisters son) escaped at the same time and mated, so there might be some genetic problems. I palpated her about a week ago (Oct 1st) and I felt two or three babies, but today I palpated her and I felt them, but all but one were small and hard like rocks. Did they die inside her? Could it be problems with the genetics?