Hey,
As some people have said above, my baby was back to back and labour was very very painful - all in my lower spine - but the tens and water from the pool (and getting someone to pour water over my lower back from a jug) was really helpful - I hardly got any tummy pain at all.
It was very very sore but as she was my first baby, I have nothing to compare it to. I did manage a natural home water birth though - with no pain relief, so it can't have been that bad. Please don't panic - my baby hadn't been back to back until I went into labour, so your baby can turn at anytime and anything can happen during labour - use your free time now to get some sleep!
I hope this helps
Love
Valentine xxx