I'm Pro Choice but I'm not necessarily pro abortion either.
I am a big pusher of birth control, sex education (including the real gore aspect of STD's and the actual birthing process) and the younger the better and every year in school right through freshman year of college (after that hell, if that wasn't enough you're on your own) and no I don't give hoot what mommy and daddy have to say - it's human biology and ethics and teachable in school.
Humans are very often careless with their bodies, hearts and sexual organs.
That said I also don't think everyone should breed either - but people are allowed to make these kinds of choices on their own.
So if you have the choice to breed you should also have the choice not to bring a child into the world and as people tend to bring a child into the for the wrong reasons people will naturally use abortions for the wrong reasons as well. All you can do is educate people and hope they understood and heed the advice given.
While I find abortion being used as birth control to be reprehensible, I don't feel differently towards those that are careless breeders to bring children into the world to save their marriage, get a marriage or do what they think society and their peers expect them to do when they are not equipped mentally, emotionally, physically or financially to do so.