I probably won't ever be able to conceive due to medical problems. If I'm ever lucky enough to create a little half-me-half-him, it would have to be with a man I love and share my life with. Only because it's such a delicate situation, and I've already lost one baby due to my medical problems. For me, reproduction is a very big deal. (not that it's NOT a big deal for everyone, but I'm sure you know what I'm getting at..) Not something I could do with a platonic friend.
I'd rather adopt than try to conceive my own, there are so many kids in this world who need a parent, I'd feel like a greedy bitch if I insisted on letting them grow up with no one to call Momma just so I can force my body to do what nature is telling it not to.