Well everything has been pretty much said, but I guess in my own words abortion is up to the on who has the need to make that decision. I won't really judge anyone based on that ONE time. But if someone keeps doing that...said person must have no conscience and I can't respect anyone who does that more than once. Mistakes happen but you better learn from it especially if that means technically taking a life.
As for the whole teen pregnancy thing. Do what you want but it certainly isn't fair to have a child raised in poverty. Most people do not DECIDE to have kids until a nice financial situation has been established. Seriously...FOOD,CLOTHING,SHELTER,SCHOOL. All that for atleast 14-18 years. You have to think about that.
Bottom line: IF you can provide for it and make sure that child is happy then go right ahead and be happy knowing that you worked your arse off and got the job done. If not...good luck. Not the best of ideas.