Uy, yan ang lightning crotch talaga, super common sa last weeks ng pregnancy, lalo na pag soft na cervix mo! That sharp, shooting pain between your butt and vagina when you're about to poop or during, it's usually just your baby pressing on your nerves down there as everything loosens up for labor. A few of us moms experienced the same thing right before we gave birth, so it's actually a good sign your body is prepping! But since you're already 38 weeks with a soft cervix, definitely mention this to your OB next visit or call them if the pain becomes unbearable or you notice any other changes, better safe than sorry, especially near term na.