Ravyn,
If I saw having a child to give me a hope to live, as the only reason for having a child, then I probably would have let myself fallen pregnant many years ago. However, I'm aware that there is much responsibility in bringing a life into this world, and so I have refrained from doing so, until I am in a position to give that child a stable home with loving parents.
I just know that if I had a child, that would stop me from musing on doing away with myself during my darkness. I've grown up without a mother, and I couldn't do that to my own child if I could possibly prevent that. Having a child would give me a reason to live, whereas when you have no dependants, you can get to the point where you think, "who cares if I go? No one will really miss me. It doesn't matter if I live or die."