Took it with last pregnancy and it did not start labor for me. (I clearly wasn't ready yet with her)
This time, I *tried* to take it, but litterly I chuged as much as I could with one breath and promptly threw it back up as soon as I took a breath. The taste isn't too bad, it's the AFTER TASTE OMG yuck yuck yuck.
FWIW, my mw recomends mixing it with egg - preferably with raw egg in a drink (like oj or a milk shake) or using it to cook scrambled eggs. She says it works best that way.

yuck.