I had gas for a short time with both labours, but i don't really consider it a drug as it is fully out of your system 20 secs after you inhale it. I found it didn't really lessen the pain, but it gave me something to concentrate on. The thing that convinced me was researching the side effects of all the drugs while pregnant, i did not want to put myself or my baby through any of them! There's a fantastic book just called Birth, it's written by a midwife and childbirth educator, and it's huge! But it's full of fantastic, recent information and very easy to read.
I found the main thing was to stay in control and mobile if possible, find out as much as possible about birth and all the interventions and try to plan as much as you can. If you feel in control the pain is much more manageable. Knowing everthing you can gives you the confidence to refuse any intervention you don't think is necessary. And yes it hurts like hell, but the pride you get from doing it all yourself is pretty cool.
Kelly, 22, 1 @ 25/1/04, 2 @9/3/05, 1@5/4/06