I just wanted to add my thoughts. I was 17 when I got pregnant and had my now incredible 11 yr old DS. I was always a "good" kid. I was quiet, did well in school, and never got in any real trouble. So this came as quite a shock to both my parents and family members. My younger sister was always in trouble, so they were kind of expecting her to do something along the lines. Anyhow, some people treated me terribly, I was still the same polite young teen I had always been. In a moment I made some bad judgement calls, but it didn't change who I was.
I went on to finish high school, and I got my college degree. I own my own business now, along with a wonderful house, and at least 2 trips to Disney a year

. I married a different man, who treats my son great. As well, as my son still maintaining a relationship with his own father. My son doesn't lack for anything. It is all because of the support I received from my parents. Without them I'm sure I wouldn't of been able to make as much of myself as I did. My mom worked fulltime all week. Then watched my son at night so I could go to college. Then watched him on the weekends so I could waitress part-time to support him. It was rough, and it was hard on all of us. But in the end we made it through. It's not what my parents would of necessairly planned out for me, but the bottom line was it happened. They stepped up to the plate, and I could never thank them enough.
I think it is great that you are proud of your daughter. By being supportive, you are giving her and your new grandbaby more chances. They'll be many tough times ahead, but they'll be so much easier on her with the support of her dad. CONGRATULATIONS!!!!!!!!!!!!!