Hi mama! Ang ganitong sakit, lalo na sa ganitong stage ng pregnancy, kailangan talaga i-check ng doctor mo agad, hindi siya dapat palampasin, okay? It could be so many things, pero hindi ako pwedeng mag-guess, at mas importante na marinig mo directly from your OB. Call your clinic or go to the hospital kung parang urgent or hindi ka comfortable maghintay, better safe than sorry, especially na malapit na due date mo! Keep me posted, ha, worried na kami dito!