Interesting thread, thought I might chime in.
First, I am against the idea of abortion but I think that taking away a woman's reprodutive rights and her rights to her own body are no better.
Also, we live in a very self-centered world where wayyy to many people put themselves way before others and think about their own wants and needs. I hate to say it, but this is who we are as a society and when ever possible many people will make the easy choice over the choice that will be around the next 18-24 years.
Ideally, I'd love it if a person would always make the right choice and have the child and if they didn't want it then give it up for adoption or to a family member who'd care for the child. As far as we know this is it, you only have one shot at life and to take that away before birth is a really sad thing. I think most of us would rather be born into a terrible situation then to not be born at all.