This is a really, really hard question that only you can answer. You need to do what is right for you and your specific situation.
I had a friend who got pregnant at 16. She decided to have an abortion
for a number of reasons; firstly, she knew she couldn't take care of the baby and would have a very emotional time giving her up, and secondly, my friend was being treated for depression
and was on a lot of medications. She was very concerned that her baby would be born severely disabled and didn't want for her to suffer or be a burden on anyone else, I know lots of people would disagree with her decision, but it was my friend's choice, and I respect it.
Lots of people are against abortion in all cases. I personally think it is better for an unwanted child to be aborted rather than introduce him or her child into a dysfuntional world. You are very young; giving birth at your age could have affects on your health and the health of your baby. It will certainly affect your emotional health and put an enormous strain on your education and family, even if you decide to put the baby up for adoption. Pregnancy
is rough.You need to talk to your doctor about what he or she thinks and you may want to consider seeing a counselor for guidance. If you are a religious person, talk to someone you trust and respect at your church or temple.
You have a huge decision ahead of you so don't make it hastily. The choice you make will follow you for your entire life so you need to be at peace with it. Good luck and I hope you do what is right for you, not what your parents want you to do.