The only reason why I said about getting it in writing is because he has expressed that he doesn't want to keep the baby and the mother agreed to that. And is it fair for the mother to say " you don't have to do anything, I am not expecting anything from you" then when she needs money or changes her mind years down the road, nail him for years of money not paid?
Now if she said she wants help right away, then yes, tooscared, you have to own up to what happened. You say you are only 21, but she is only 16 (you choosed to sleep with her).Like sunflower said... The pill is not 100% (close but there is still that chance). This stuff happens and people have to deal with it.
I am not saying that abortion is the awsner !! But adoption could be.. There is sooo many loving couples out there that can't have babies, and are trying soo hard.