Couple of thoughts:
1. I think it is easy to talk of this "child" as it is while it is inutero. I cannot imagine looking at any beautiful, newborn, wonderful amazing baby with anything but love. Your detached thoughts may change once you see your child.
2. You are in an unfortunate situation. But you are not the first and will not be the last. There are many men out there raising other men's children, and there are probably many place childred because of similar situations. I know one family, similar to your situation. The husband and wife now have 4 children. One was fathered by another man similar to your time circumstances, but he is just as much a daddy to that little girl.
3. You and your husband need to get some counseling. What happens if you give this baby up for adoption, and then resent your husband for not supporting you while you raised YOUR child. It is my guess that at some point, this child may become yours and not just his.
Prayers are with you. You have difficult work ahead of you. My most positive energies your way!!!!
