Me & DH are 20 & 21. We are both in school, I was working full time as well before I got pregnant. We have our own place, but still are very close with our families and rely on them for support. Our pregnancy was not planned, but we both knew it could happen. When we found out I was pregnant, we were both excited, but dreaded what our families would say since we are still young and in school, and they were hesitant about us getting married this young.
When we told my mom, first thing she said was I'm too young to be a grandma! Then she laughed and gave us hugs and took us out to celebrate. When I told my dad, I told him I was really sick.. and tired, and nauseas. He asked if I was pregnant, and I told him no, since I wanted to tell him in person. He actually said, "Oh thank God, you dont need that right now." I started crying and told him the truth, and he was super supportive. Hes really excited, and still feels bad about saying it. DH's mom however, suggested that we considered an abortion. It hurt, but she got past it. Shes thrilled now thinking of her little granddaughter. Parents can be very supportive, even if its a shock at first.
I personally could never have an abortion, but I have a friend who had one, and then got pregnant a couple months later and just had her son in Dec. I also know 3 women however, who have had an abortion, then TTC for a long time, and had no success, and they feel its because of the abortion. I'm not trying to tell you what you should do, I just think you need to think it through very thoroughly. Good luck, either decision is going to be difficult.