Please dont allow anyone to pressure you into this situation. IF abortion is right for you, then it is your right to choose to do so. However, it is not something to be entered into lightly.
If you are not in a position to raise the child, I would ask you to really heavily consider adoption. It wouldnt be easy on you, I know. It would be one of the hardest things a person could go through. But there are so many couples in this world who would be wonderful parents and are just waiting on a child to be born that can come into their family. Adoption is a beautiful, amazing, selfless gift that a person gives a family. I know thats not a decision to enter into lightly either.
Good luck on your decision, whatever it may be. But remember, it IS your body your decision.