Ay, ito talaga ay medical question na kailangan mo talagang tanungin ng doctor mo, lalo na kung may concerns ka, hindi ito dapat i-"wait and see" lang, okay? Placenta previa is something na kailangan ng proper monitoring ng OB mo para malaman ang exact situation mo at what happens next. Sabi nila minsan talagang may changes, pero depende talaga sa case mo, kaya please don't rely on random advice, go see your doctor asap para makakuha ng peace of mind at proper guidance. Take care of yourself, mama!