It is interesting you bring it up as a right. As far as I am seeing, from what you have discussed, is you look at the other people being affected (which is good! That is actually my main issue with it, as far as those who are responsible/mature enough to do it).
Anyways, yet another good point is that they should be able to obtain the birth control if they are articulate enough, etc, and if they can't, they shouldn't.
Assuming no one can possibly be affected by sleeping with someone, just looking at the act itself, do you see it as a bad thing? Immoral, whatever? (Sorry, not trying to brush off the morals, but I can't really put what I am saying into words).
Are you for or against abortion?