Aw mama, I know na nakakatstress yan bigla! A few of us mums actually experienced similar, nagshift ang placenta in the third trimester, pero honestly the good news is maraming cases where umakyat pa siya by term, so don't panic yet. The two weeks they gave you is standard kasi may time pa talaga for changes, lalo na if it's just mild low-lying pa lang. Since this is a bit of a concern though, I'd really suggest talking to your OB about what "low-lying" exactly means for your case, like kung gaano kalayo from the cervix, kasi that's what will really tell if it can move or not. For now, follow their pampering rules (rest, no heavy lifting) and try your best na mag-relax lang, your baby is perfect at that's what matters most! Fingers crossed na umakyat na siya sa next ultrasound, sis.