Sayang, at 38 weeks, braxton hicks (tightening) yang kerap boleh jadi normal, tapi sebab dah 3 hari macam ni, better you call your doctor or go to the hospital to check , okay? They boleh monitor baby and make sure everything is fine, tak payah tunggu sakit dulu! A few of my mum friends also went in just to confirm, and it gave them peace of mind, so jangan hesitate. Better safe than sorry when you're this close to due date!