Pregnant by one night stand

I'm about three weeks pregnant by a friend that I had a one night stand with. I know I'm dumb. I know I have options, I told him and we're going to talk about it tomorrow. I'm just not sure what he's going to say. I'm open to options but I'm not opposed to keeping this baby. I'm just hoping we can come to a mutual agreement. It's not just my life this is affecting. I'm going to take his thoughts into consideration as well. I just need some advice I guess. I'm just ashamed of myself. I'm 21 but I always planned being pregnant so much differently. I have a job and home but I'm so scared. I didn't even think I was pregnant just went in for birth control. I haven't cried about it I'm in shock I don't believe this happening. And advise/similar stories id love to hear.