One of my teachers has been trying to put our class buck and doe together to breed. We've tried a few times before and this past time we thought it happened. But the due date (9/11/14) passed, and she didn't conceive. We continue to put them together for a little while every few days or so, action happens in the pen, but we still don't think she's gotten pregnant. My teacher thinks the male is "running out of luck" and not producing the needed sperm. We bred him last year to a different doe, and she got pregnant. But we believe she either ate her kits or aborted them. We have been asking other kids if they had a buck we could borrow to help make the miracle happen, but the only offers are from kids who want my teacher to keep the rabbit so they don't have to continue caring for it. My teacher has specified that she only wants to borrow the rabbit, not keep it, as the buck mentioned here is her own rabbit. Do you have any advice we could use? Any advice would be appreciated!