I'm for it being a choice. I dont like it and I think it should be a choice of last resort, but I can see its merit.
I tend to look at things pragmatically, not religiously btw.
firstly, I believe that life begins at birth, not conception or anytime beforehand. Of course, you have to define what life is. You could say life began billions of years ago and thats that.
Next, I think other factors need to be weighed in on someone's belief of whether its wrong or not, theres health issues and social issues. Is it right for a child to be born to a family that wont take care of him or her? Theres also the problem of overpopulation, which is a SERIOUS concern. And theres the problem with sexual predators and rape and incest, both attrocious crimes. The mental and psycological strain is something that would be very difficult to imagine.
I think its something that should be left to a woman and ONLY a woman. Its one of those things that you cant really make an educated answer on unless you've been affected by it somehow.
on the other hand, if some dumbass gets knocked up for being easy or sleeping around, its their fault and they should pay the penalty for it. Of course, sometimes that ends in tragedy far worse than abortion (like when a pregnant teen gives birth then dumps the baby in a dumpster.)