You can... You shouldn't unless you want tons of baby rabbits.
No, if a rabbit does not want to breed with another, harm may come to the other rabbit.
rabbit can cach it from another rabbit that had it
My opinion is yes because if she escapes or another rabbit gets into the garden and they have intercourse then your rabbit will become pregnant so it is better to be prepared :)
Bunny rabbit
Another name for a male rabbit is "Buck".
It's not uncommon but it's not "normal" in the sense that it's not healthy or good and you have to do something about it!Separate the rabbitsTreat any wounds (first aid and vet care)Socialize the aggressive rabbit and create a habitat for her that helps her feel safe and securePlease see the related question What should you do if your rabbits are fighting? for more information (linked below).
if it wants to
usually not... but a mother rabbit would eat her baby if it died
No, because it will not like the other rabbit because if a rabbits comanion dies it will dislike the new one, or it will like the new one if your lucky.
The male rabbit should never be housed with the female rabbit. He should never be introduced to her habitat. To breed she should be taken to his cage and removed after they are done breeding. The male rabbit should NOT be exposed to the kits.
because it must have thought it was another animal
Turkey baster + drunk husband=pregnant rabbit