With my first I didn't have any pain meds, and plan to go that route with this one, too. I went into the situation with the attitude that I would do my best to go without meds, but I wasn't going to be a martyr and would take the epidural if things got really bad. Never having had a baby before, I had no idea what to realistically expect.
I chose to have a non-medicated birth because I felt it allowed me to be an active participant in the birth of my child, and would allow me to recover quicker, too. It appears that everyone's level of pain during childbirth is an individual experience. My contractions became painful, for sure, but never anything that made me feel like I was going to pass out, or even come close to that.
A huge help for me to remain unmedicated was having my doula with me. Her knowledge of exactly what was going on, and what I could expect, took the fear out of the process. She also knew what to do to help me through the contractions. There's lots of things that can be done to ease the pain a bit.
My daughter was a large baby (9lbs, 9oz), and I was told by my doula that her size was less of a factor in how much it hurt to deliver her than was the position of her head. Apparently, a baby whose head is in perfect alignment will deliver much easier than one whose head is just a little at an angle, or off a bit. And if the baby's face is facing your belly button (rather than your spine), you will experience "back labour", which is apparently *extremely* painful.
So, I will hire a doula for this birth, and hope that Baby aligns herself up well. But again, if the pain becomes unbearable, I won't be a martyr.
Ooh, another tip: when you are at the point of actively pushing the baby out, ask to have a mirror placed so you can see the action (they have those). It will help you to watch what's going on; you can actually see a difference when you push effectively, versus not. (Again, my doula was a gem here, because she told me exactly how to push, and explained what I was doing wrong). And when you actually see the baby's head begin to crown, you will get a fresh wave of energy for that final, hard push.
I hope you have the birth that you want.
Sandra