Last month or so, I breed 3 Does with 1 Buck, and another Doe with a different Buck(Netherland Dwarfs). A few weeks, they were due, but no kits came, except for the good mom with one dead kit, and the new mom with also 1 dead kit. Neither of the Bucks are too old to breed, and they're both healthy and the first buck has had very good litters. Can anyone explain how there were no more kits? The other two moms didn't even make nests.