So now we're arguing over the rights of natural biological processes?! This is something that occurs naturally. Sure, you can argue over the rights of an artificially created thing--like filesharing--but arguing if a fetus, which never made a decision on the subject, has a right to be there, is insane.
The fetus never had a chance to consider these problems. There's a difference between something that's brought there without its consent (it's arguable if a fetus even can consent) than someone that actually makes a concious decision about it.
I think that on this subject, a lot of people are reacting because of the "oh my god they're killing a baby" thought instead of actually thinking it through (I'm not specifically speaking to any one of you, but that's my general impression). We need to stop and think about this. Take as an example the fact that South Dakota hasn't banned abortion--yet. They're only halfway there.