Mommy, please go to your OB or the nearest hospital ngayon na para ma-check, 39 weeks na kayo, and any change like that kailangan i-assess ng doctor right away, para sure lang na lahat ay okay with you and baby. One of my mum friends sa barkada namin had something similar near her due date, at the doctor checked her agad, better safe than sorry talaga when you're that close na to labor, kasi maraming possible reasons and need mo ng proper guidance. Huwag maghintay pa, go na!