Ok, the other doe has finally had her litter! We were expecting them on Friday, but got them this morning (between 1AM and 7AM). For future reference, the gestation time on rabbits varies from 28 to 34 days, with the average being 31. Thank you Storey's "Raising Rabbits"!
After everything was said and done, it looks like the doe's second round of breedings worked, but not the first round.
6 healthy kits popped out, bringing the total to 14!