Ay, at 28 weeks na kayo! Siguro best to check with your OB about this para ma-rule out kung normal lang Braxton-Hicks o kung may iba, especially kung kasama ang sikmura, gusto lang namin sure na okay ang baby at sa inyo. Ang belly pain during pregnancy ay madalas normal, pero since may sikmura pa, mas better na mag-confirm directly with your doctor para peace of mind ninyo both ways.