I think I'm having trouble getting breedings to take. I've bred one of my does (now 11ish months) with one of my bucks 2 times (each time after she hasn't given birth after 37 days) and I know the buck is viable because he has created kits with another doe. I also bred her with my other buck and no luck. I've bred another of my does with the proven buck, and had the same issue. Every time the doe lifted and the buck fell off multiple times. I don't understand why the breedings aren't taking. It can't be heat sterilization after all this time, because the proven buck at least fathered kits during the summer, fall, and now winter months. I checked for readiness on the doe and both were definitely ready when I bred them (the one, each time I bred her). I checked them all for vent disease and haven't seen any signs, nor any other signs of sickness either. They are all in good condition, not too fat and not too thin. I just can't figure out why they seem to be bred, but are not producing any kits, or even showing signs of having any, like nesting behavior. Please help???