Mama, please see your OB right away or go to the hospital if the pain gets worse or you're worried, 39 weeks is so close na, and any unusual cramping or tightness needs to be checked immediately, hindi dapat palampasin! A few of us moms felt different things as we got closer to labor, but honestly, only your doctor can tell if it's just Braxton-Hicks (practice contractions) or something else going on. Don't wait it out, go na lang, mas okay na ma-clear up kaagad. Sending you hugs, you're almost there na!