Turn down my first adoption referral :(

Well we went on vacation about a week ago and our social worker emailed me a profile of a premie up for adoption. She could not contact me because we were out of the country so she sent them our info to be on the safe side. I came back and read the profile and was very afraid of all the details. The little boy was 2.5 months premature and the mother used crack and drank alcohol during the pregnancy. After much prayer and asking professional staff about the long term prognosis, I asked for our name to be taken off the list. I know that no child is perfect but I don't believe that God meant for us to have this child. Sometimes you can get caught up in the moment but I had to think about the long term picture. I know in my heart that we were not ready for such a huge responsibly of dealing with such a sick child. He was expected to be hospitalized for another 1-2 months in NICU and they wanted to adopted parents to be at the hospital to help him through the journey. I felt guilty for saying "No" because I am a nurse and care for sick people all the time but I would have felt worse if we were chosen and then had regrets for the rest of our lives. When the right child comes, we will know it and there will not be any doubts that they are the right child for us.