Mama, yan na ang Braxton Hicks contractions, totally normal sa ganitong stage ng pregnancy, lalo na malapit na ang due date mo! A few of us in our mum group were getting those super tight belly moments din around 37-38 weeks, kaya don't panic, pero if it becomes painful, regular, or may bleeding or fluid leaking, better check with your OB na para ma-monitor mo lang properly, basta to be safe lang, especially na so close ka na sa delivery.