Uy mama, that sharp pain when baby moves could be ligament stretching or baby's position putting pressure sa cervix mo na already dilated, super common at 37 weeks, lalo na kung active ang baby mo! But since may IE ka na at 2cm open, better check with your OB talaga just to make sure everything's okay, especially if the pain gets really intense or you notice other changes like bleeding or leaking fluid, para peace of mind lang natin