Aw mama, yan talaga yung frustrating part ng waiting period! Those crampy pains you're feeling could be practice contractions or early labor signs, pero honestly kailangan mo talaga i-confirm with your OB kasi sila lang ang makakacheck properly if it's the real deal or Braxton-Hicks, lalo na since you're already at 38+ weeks, better safe than sorry. A few of us mums noticed the same crampy-reglahin feeling days before actual labor, pero may iba naman na nararamdaman pa lang ng ganyan for days na di pa umaandar ang cervix, so really depends sa bawat mama. Keep monitoring kung paano yung pattern ng pain mo, kung regular at lumalaki ang intensity, call your OB agad, okay? Fingers crossed na bukas na si baby!