I think for some people it does make a definate difference, and some it doesn't. Not much help huh, lol! For me, I loved being in the bath when I was labouring at home and while I was in pre labour for days. The only place I could get comfy was the bath. I slept in the bath the day before I went to hospital because I couldn't find the same level of comfort I did anywhere else. The shower didn't do anything for me, but the bath....ahhhh, I still remember the bliss! But I love water and I love baths even when not pg, so maybe that might have been why it was so good for me.