Pjen I feel your fear - it's VERY normal - there are very few women who get pregnant just to go through labour.... mostly labour is a side effect of something lovely they want to happen - having a baby. I don't avoid wine so I avoid the hangover - I accept that for the most part one leads to the other....
A few comforting thoughts which helped me...
You come from a VERY long line of women who have all successfully given birth to women who have given birth to women who have given birth etc Most of them will have done so without any medical intervention - we are bloody lucky...
Your brain is made up of two parts the 'rational' part and the 'animal' part. the rational part is the bit that is afraid of labour - the animal part is the bit that will just get on and do it.
Try and decide exactly what it is you are afraid of... for me it was the loss of control. I mentioned this to a friend once and she said something that stuck with me - that it's a great opportunity to properly lose control - to swear like a sailor, bellow like a monster and terrify the hell out of your partner - I managed to grab my DH's love handles so hard that he bled during one of my contractions - it really helped me though.... And the shouting/swearing is great fun and actually helps - it is a wonderful release of pent up stress - not a scream of pain. For me an epidural/c-section would be the worst thing as you lose control of the situation - that was a big fear for me.
It sounds like for you the fear is the pain... try and do a list of things that you think will hurt more and less than labour - a scale if you will. Try and think of strategies that will help you at each step up your scale.
The other novel thing about labour pain is that as soon as your baby is out it goes - it doesn't fade away - it stops with a big happy rush of hormones...
Someone on here recently posted that they were afraid of labour pain because they didn't think they could handle it. I think in the end she used hypno birthing and Gas and Air and came back absolutey buzzing about how she did handle it and it wasn't as bad as she thought.
I second/third peoples suggestions for the Ina May Gaskin books - The birth stories are written in sightly dated language but they are wonderful and remind you that the vast majority of births aren't newsworthy horror-fests at all!
Sorry lots of rambling points here - hope some of it is useful and that you have a joyous birth (however it happens) and a wonderful time as a mum...