Mama, that sounds like it could be something na kailangan i-check ng doctor right away, hindi lang para sa baby, kundi para sa peace of mind mo rin! Cramping with diarrhea at 37+ weeks can mean different things, and you deserve proper assessment na hindi ko makikita dito. Please call your OB or go to the hospital ngayon na para malaman kung ano talaga ang nangyayari. Hang in there, you're so close na!