Gestation is 28-34 days, and many rabbits showvery little sign. I have a doe that didn't show at all, but gave birthto 5. Another did get really really round and it was very obvious. Hernipples got swollen too. Some does get moody and cranky.
It's sometimes possible, as Carolyn will tell you, to feel little"marbles"on the doe's abdomen, which are the babies. But,I've never been able to find any! I've heard it's difficult and youhave to be careful so you don't hurt mom or babies.
I'm guessing from your ":?" that this was an accident! Most matings arevery quick and do indeed result in pregnancy. They are prolific littlecritters!
Not being a breeder, I arrange litters rarely,only to replaceone of my own bunnies. I've raised three litters from birth, and twowere planned (one was a borrowed pregnant doe--surprise!). So I wasable to be fairly surethe girls werepregnant andcount days exactly, making it mucheasier to take care of them.
Up to a week before birth, a doe will make a hay nest in her sleepingbox (or that's where it's supposed to be!!). Right before labor, she'llline it with fur. A first-time mom may not do these things, but many do.
I hope it goes well if she is pregnant!!
Rose