15 year olds shouldn't be having sex.
I volunteer with a charity and the girls must be like 3rd year, they don't know what STIs are, what HIV is, they think it's a game to go round getting laid with every guy they can.
We did this for GCSE religion, where it was a little story of how the baby progresses, like, (probably not correct as it was a while ago):
day 1: Genetic map created
Week 5: my heart developed
Week 15: I heard what music my mum listens to
Week 24: My mum killed me
I found that very hard hitting. It bugs me to see girls carelessly get pregnant (and I know in some cases, it can be rape) but it annoys me when they get pregnant, abort the baby when there are hundreds of desperate parents trying and failing to have children.
I personally would not like to go through it myself, honestly, living with the guilt of knowing you have essentially, terminated a living person, that could be a possible genius child who is the key to curing something, maybe not.
Also, as said, I think it depends on the circumstance, would you want to bring up a child who may not have a life at all? How would you tell them that they are a result of a rape?
But what is a good life in today's society?
I think it's entirely up the the person but if you are careless enough to get pregnant well then, that's your problem.