Ay, mama, I know it's scary na may pain, lalo na ngayon na 5 months na. Please go see your OB-GYN soon or go to emergency kung severe na talaga, hindi worth the risk to wait, okay? Better safe than sorry sa pregnancy. Pain during pregnancy can come from so many things (ligament stretching, positioning, even how baby's moving), pero ang doctor lang ang makakasiguro kung normal lang o may kailangan i-address. Don't carry this worry alone, let your OB check you out.