Mama, please call your OB right away or go to the nearest hospital if the pain gets worse or you feel dizzy, hindi worth the risk na maghintay pa, lalo na first time mom ka! Stomach pain and changes like that during pregnancy kailangan i-check agad, hindi lang basta "normal labor signs", marami kasing reasons for it, so your doctor lang ang makakapag-confirm properly. One of my mum friends thought ganyan din siya around that time, pero turned out something else, so napakaimportante talaga mag-consult agad. Text or call your OB's clinic now, mama, most likely they can squeeze you in for an emergency check-up, especially since may almost 2 weeks pa before your scheduled visit. Take care of yourself, ha!