I am scared to death of pregnancy..

My husband and I would like a baby one day.. But just the thought of giving birth scares me and makes me shiver..  I have a very low pain tolerance.. I pass out anytime my blood has to be drawn.. I just don't know how I would make it through everything that comes with pregnancy.. My husband and I both are only children and we are both fine with it just being the 2 of us.. But we both like the thought of having a baby one day.. I don't know what to do.. Am I meant to be a mother if i don't have the strong urge to be just yet? I'm 24 and my husband is 34. I don't want to wait much longer befor having a child if we are going to because I know he does t wanna be an 'old dad' lol.. I don't know I'm just confused. Any advice/opinions are greatly appreciated.