Agree with others horsey that it may be a 1 off, but if not, seek prof advice.
I think the memory does fade with time though. I didn't have a particularly traumatic first birth but at the time, rushing to the hospital with my waters gone, a tremendous urge to push & major contractions was a bit of a 
. I honestly thought that I would have the "usual" longish delivery as a first time mum. So much so, I was kind of shellshocked. When I admitted that to other mums I'd just met (when they asked about the birth), they made slightly spiteful comments and suggested I was 'lucky', regaling me with their horror stories. Now, I'm not saying they didn't have a bad time of it, I'm just trying to say, having a baby, in & of itself, can be shocking, & somewhat traumatic, even if nothing really goes 'wrong'. It's a huge life adjustment, but it does fade and many, many people go on to have another 1 2, 3, 4...
No need to decide now about possible offspring, just make sure the feelings about the birth aren't having a detrimental effect on your life.
Oh and, having DS has helped me lay some ghosts to rest, even with the much quicker birth & tongue tie. I do still doubt myself about things, but less often, & different things to with DD, & ultimately, I think that's a mother's lot in life!!
Right, well I'm off up to the local airfield to see if I can procure nick a plane for a joy ride mercy mission with the sleepy dust. My flight plan is to do concentric circles covering most of the British Isles 
Night all.
Oh and Wtf are "jelly kittens"?? I'd get rid. DD's double wardrobe is being taken over with soft toys I won't mention that some are mine though