Aww don't worry too much, banyak mums aku kenal ada low-lying placenta around 26-28 weeks and it moved up on its own by the third trimester, placenta memang boleh migrate as the uterus grows, so ada good chance dia akan naik by your next scan! The waiting period mmg ngeri, tapi it's really common at this stage, so habis masa scan next week tu you'll probably get better news. Just follow your doctor's advice (avoid heavy lifting, rest well) and fingers crossed everything shifts nicely, keep us posted, okay?