Thankyou so much everyone!

It really is amazing to hear different stories and points of view, I wasn't sure how many people chose this option (I'm the first of my friends to be pregnant). My mother had drug free births for the three of us and knowing it could be done definately made me want to give it a go, but she had 4 hour labours with us all so I am open to an epidural if things get really difficult. I really appreciate the input (and i will look into the TENS machine!)
Thanks