When my wife was about to have her first baby, she got a book about birthing traditions around the world. The one that impressed me the most was a native tribe in the Andes, I think. Or maybe Mexico. Could it have been the Huichol?
Anyway, in this tribe, when a woman was having a baby, her husband climbed up in the rafters above her. A string was tied around his balls and the other end of the string was in the hand of his wife. Whenever she had a contraction, she might tug on the string, and the man’s cries would echo as loudly as the woman’s.
I don’t suppose there’s any surprise that the birthrate in this tribe was such that they no longer exist. [Naw. Just made that last part up.]