Ay, mama, this is something you really need to talk to your OB about agad, okay? Hindi kami dapat mag-guess dito lalo na habang buntis ka pa, better safe than sorry talaga. I know it's scary, pero ang OB mo ang best person to check what's going on at what's safe for you at baby. A few of my mum friends had similar concerns during pregnancy, at nag-check lang sila, doctor's reassurance talaga ang nakatulong sa kanila mag-relax. Don't worry, marami kaming kasamang moms who've been through this, and most times it's nothing serious, pero kailangan lang ng proper check. Go na sa clinic soon, mama!