A biological Child

I am longing to have my very on child. A son or daughter, at this point it doesn't matter. I wanted a son soooo bad, I didn't want to raise a daughter. But my body is messed up and I really don't think its possible for me to have a child, a biological child. I don't even mind being a single mother. Eventhough, some people think that a child should have a mother and a father.I know that I can do it on my own.
I have had relations with a man for about 5 or 6 years and not once have I gone full term. And its not him, because he has a child.
There is something seriously wrong there. I don't know, I'm just rambling, but I want a child, A Biological child.