Baby Chaos has a page on Pain Relief Options, and at the very bottom it says, “Shouting, screaming and swearing; as loud as you like, it will make you feel better (don’t worry, the midwives have heard it all before). Chanting has a very calming and soothing effect, but it doesn’t quite give the satisfaction, as a string of well timed expletives!”
Hmm, maybe this helps some women through the labor, but is that really the first thing you want your baby to hear as it enters the world? Especially from mommy?!