Bes, I understand the worry, sakit sa puso talaga ang feeling when something doesn't feel right! But honestly, ligtas lang na tumawag agad sa OB mo or mag-emergency kung parang serious, kasi ligtas na clinician ang dapat mag-assess ng what's happening sa belly mo ngayon, especially while pregnant. A few of my mum friends had different types of tummy discomfort throughout pregnancy, pero kailangan talaga nilang i-check ng doctor para ma-rule out anything. Don't self-diagnose this one, it's better to be sure.