i used one for my first labour, but i don't think it did all that much for me. it's principal use was as a distraction... gave me something to do during contractions. i lasted 16 hours with TENS but by that stage was not in good shape and needed serious pain relief.

TENS apparently works wonders for some people (among them the woman who took our labour classes - she had 4 kids with no other pain relief) but not for others. there's certainly nothing to be lost by trying it, but the one thing i do regret is that it prevented me from getting in the shower which would probably have been more helpful in the later stages.

best wishes for your pregnancy and labour .