giving birth

I want to have a child very badly and so does my soon to be husband but I have such an irrational fear of giving birth that I don't know if I will ever be able to do it. When I start to think about it I get sick to the point where often I will throw up out of anxiety. I know it's rediculous but I don't know how to stop it. It would kill my SO if he could never have a child of his own. He is understanding of my fear and is patient and knows I will have to get over it before having a child. Can someone tell me what it was like for them to have their child in detail like how long did it take how long were the contractions and how bad they hurt. I want to know it all so maybe it can calm me down a little.