hi smiling
i had my first baby 10 wks ago now (baby boy 7lb 11oz) im the same as you im not very good with pain and wasn't really worried about having a totally natural birth either. i went in open minded about pain relief so i wouldn't be dissapointed if i had to have anything.
i was induced as i was 12 days over my edd, i was started off at 8.30am and by 1pm i was having mild contractions, they went on for a while and i was coping well just breathing through them and i had a bath which eased the pain abit. but by around 11pm ish they were getting quite intense so i started using gas and air which helped for a short time but after being told i was only 5cm dilated i opted for an epidural at midnight. it took affect almost straight away and it was so lovely to be free of the pain. i managed to get some well needed sleep. i was examined at 3am and was about 8cm and then again at 5.30am and was fully dilated, through all of this i was completely numb from the chest down. i was quite scared of having the injection in my back but it was very easy and hardly hurt at all and by that time i was so uncomfortable that i didn't care.
my midwives got mw ready for threatre as soon as i mentioned epidural as it was my first and i think in alot of cases people do end up having some sort of intervention becuase it can slow labour down or because they are unable to push affectively due to the numbness.
this was not the case for me, i mangaged to push ds out in an hour and i never tore at all, and had no intervention. they were very surprised by this as it must not go that well most of the time.
so my experience was a good one but i do know thats not always the case and sometimes it can lead to alot of interventions and even a c sections for some woman.
i think you should just go in with an open mind and do whats best for you at the time. your body will let you know if your not coping well with the pain and then you can decided what pain relief will suit your situation. your midwives should also be able to advise you on whats best and tell you all the pro's and con's of all the types of pain relief.
well good luck and i hope the birth gose well. i hope you have a nice experience like mine and that baby arrives safely. take care xxx