i did it and it worked
its not to empty your bowel its to induce cramping which then turns in to contractions. just part of it is that the cramping creates diarohea. that part is yuk
i wouldnt advise doing it, although it was the last resort my M/w uses.
it is a specific ****tail not just taking a swig of castor oil.
It will not work unless your body/baby is ready

have a raging orgasm will do the same thing(jump start the contractions.
BUT your only 38 weeks do not try anything until your 40 weeks as your closer to being ready and you wont stress your baby out either