Personally, I'm not thrilled that most 20-nothings I know are able to reproduce :-). But a 17 year-old kid? Too young to truly comprehend the consequences, imo. What should be the lower bound for allowing a young girl to decide whether or not to terminate? Its not uncommon for a child in the US to become sexually mature at age 11. Do we allow 11 and 12 year olds to make the choice about continuing a pregnancy?
I'm just not that comfortable with allowing kids to shoot themselves in the foot that easily. Yeah, they shouldn't have had sex, okay, they screwed up (no pun intended). Their judgement was poor. So, do we then allow them to make a decision that could screw up the rest of their lives?