I recommend adoption. I don't think that abortion is ever the solution. There is a family that God can provide for your child, and if you want, you can choose to remain either confidential or open with the family. I think it is important to preserve human life. After all, what if the baby inside you is going to cure cancer, AIDS, or some other untreatable disease?
I also have heard many women explain the regret they felt afterwards. This regret can last many years, or even a lifetime. Please, seek counsel from these women and they will tell you their personal experiences. There are many of these women on this website.
I pray that you find good guidance in this matter. Please keep us updated as to your decision.