Ay, baka yan ang Braxton Hicks contractions na, mama, parang vibrating or tightening sensation sa lower belly, super common na yan especially malapit na sa due date mo! A few of us went through the same thing around 37-38 weeks and alam namin kung gaano kakainis yun, pero usually harmless lang siya at paraan ng katawan mo na mag-prepare para sa labor. Pero since 37 weeks ka na at may unusual sensations, mas safe pa rin na i-mention mo sa OB mo sa next checkup mo or kahit call mo na lang para ma-confirm na normal lang, lalo na kung may kasama pang pain or bleeding, better safe than sorry, diba!