How do you know your rabbit will have babies?

OK, i have two rabbits that live in the same cage. they mate every day and they do it to each other. they both pull out fur and he has a bold patch on the back of his neck. is that normal. and is there anything to give her for nesting suplies?How do you know your rabbit will have babies?
If you think that she is pregnant, take the male out and put him in another room. Give her a nesting area with shredded paper, lots of pellets and unlimited timothy hay and fresh water. Have you taken her to the vet? If not she needs to go soon. Just to make sure that everything is moving along properly. Only handle her when you have to, and do not touch her babies, she may get scared and harm them. Good luck !How do you know your rabbit will have babies?
You might want to put some type of shallow box in the cage with them, one big enough that the doe can get in and out of, but that no kits will fall out. If they mate everyday, she is most certainly pregnant, so I would start to prepare now. As I said, put some type of nest box in the cage and fill it with shreds of newspaper or something, and she will line it with her own fur to insulate it more. Also, once the kits are born I would separate the parents because the doe may get very territorial and hurt the buck or the kits if she feels threatened. Other than a place to have her kits, rabbit breeding really is very easy. They do it all by themselves.
usuualy one would see a head pop out of the vagina.
Just leave the rabbits alone. They're pulling off their fur to make a nest. You can put in some rag scraps if you want, but they might not use them. Just make sure they have plenty of water and fresh food daily, and occasionally separate them to give them plenty of rest!