I have 3 boys and each labour was different.
I had natural births with all three, but only had gas and air with our oldest who was 6lb 6oz and I was in labour for 3hrs and 31 mins. I was in absolute agony with the pain but as soon as they handed me my son for the first time the pain was just a distant memory and was worth every minute.
With our second I was only in labour 20 mins, 6lb 8oz, no pain relief and was paralised from waist down at every contraction but was fine in between so I never felt any pain.
With our youngest son it was completly different though. I went into premature labour at 29 weeks and was having contractions on and off for 3 days and the pain was bad luckly they managed to stop the labour and I had him at 39 weeks weighing 6lb 14oz (although he was small and premature baby clothes didnt fit him) with no pain relief, in labour for 3hrs 53 mins, but again the pain was that bad I was screaming for an epidural (sp?) but because I had stated when I went in I didnt wanted any pain relief they wouldn't give me any.
Every person had a different pain level and every birth is completely different. It is scary especially with the first and not being through it before but when they hand you your baby for the first time the pain you experienced was well worth it.