I don't think I've ever met a person that believes contraception should be illegal, I'm sure they're out there though. I'd be willing to bet that set of people is far, far smaller than those that think abortion is wrong, and I wouldn't call contraception particularly controversial or opposition to contraception a mainstream view by any means.

Sexual education is another topic, a lot of people oppose it to one degree or another, we all have ideas about what a kid should learn about and at what age, it isn't that unreasonable to say that a parent should have the final say in their children's education, but with that should come more responsibility which it seems many parents don't want to take on.