Agree with CAJI, it can only be your decison. Here are some options to help:
Adoption; yes you will go on to have a life but you will always wonder who and where is the child, then when it reaches 18yr it may try to find you, that can be a joy or a sadness.
Abortion: Over and done with, but can you live with the what if's!!
Keeping the baby: A long and loving haul, joys and troubles, ups and downs. Will another man take on another man's child, some do and some don't.
Then there is fostering: Your child being brought up in another person's home, but you get to see them often.
Your choice, no one else can make it for you.