It is entirely natural for you to want to have a baby. As women we are wired that way and totally normal. There are some things that while normal are scary nevertheless. Sex itself can be scary at first for example. It can hurt and be awkward but as we are experienced we become comfortable and many women learn to love it. Having a baby is painful and pregnancy itself can be a difficult for many women. Yet the joy that comes when you hold your baby and nurse her far outweighs the pain that you experienced giving birth. Being a mother is one of the greatest experiences of your life and it is amazing how quickly you forget the pain. Child bearing is the most natural thing in the world -- we have been getting pregnant and having babies since the beginning of human beings. I would not advise you to have a baby until you are ready for it. When you are ready, even though it is painful, the joy and love you feel toward your new born baby far surpasses the pain that you had to endure to get there.
Having babies is not a requirement in life. You are still an ok person even if you do not become a mother. Neither is it something to fear when you are ready. If this is something that you want and it is only the fear of pain that is in the way, that is something that you can work through. I also agree that talking with an understanding counselor would be a good idea
Hugs -- I wish you well