Sayang, ini memang perlu follow-up dengan doctor sebab placenta position at this stage boleh berubah, tapi kena monitor closely. Jangan risau dulu, banyak cases macam ni yang resolve sendiri by third trimester, especially at 17 weeks lagi. Pastikan gi check-up regularly dengan OB-GYN mu, dan tunggu scan berikutnya untuk tengok if there's any change. A few of my mum friends had similar situations early on and everything turned out fine by delivery. Jangan liftweight berat or do strenuous activities for now, and report any bleeding atau discharge terus to your doctor, okay? First baby memang banyak worry, tapi you're doing great by monitoring!