I need help wih getting my animals fixed!?

Altering a rabbit actually significantly reduces the risk they will develop any one of a number of reproductive cancers, it doesn't increase them. The rate of complications for the procedure is about 0.5%, there is a very samll chance of anything going wrong, and almost all vets are very consciencious and competent- make sure a vet you are comfortable with performs the operation. Yes, they do cut open the female's stomach to remove the ovaries and uterus. Altering your rabbits will actually make them friendlier towards you, since they will lose the hormonal motivation for territorial aggression.