Depending on where you are, abortion might be available; if you go this route, please talk to your doctor.
Adoption is a much better alternative, given how many people are desperate to find a baby to adopt. Some private- agency adoption arrangements will even set you up with a couple who will pay your expenses. You have the power to give a couple great joy by going this route.
I hope you are doing OK, no matter what you decide. PM me if you would like someone to talk to.