Adult. If you don't want a kid, please use protection or a pill. If it still happens that you can't take care of the kid, ask your family member to help. If you don't have family, ask people surrounding you for people who are not so cold to let a child suffer. Many people will gladly help the kid. If that still can't help you, we still have a place to take care of the kid.
We have many options but just why do you want to make the child suffer? Did you think alcohol, drugs, or sex, can solve all the problems you have? All what you need just to go out from you comfort place and let go the past to embrace new future.