You can't do what other people want you to do. This is your decision and it doesn't sound like you want to go that route. I was 18 when I had my son and plenty of other people have children young. It's not end of your life and opportunities etc.
Just so you know though, discussion of termination is against forum rules, there are women on here that have been trying for years and years and it's hard for them to read about this subject.