Sayang, this really needs a proper chat with your doctor or specialist, placenta previa can change, but only they can scan and tell you what's happening with your situation, especially at month 8. A few of us mums have been through similar worries, some did see changes, some didn't, but honestly, it depends on so many factors that only your OB/GYN can assess properly. Don't worry alone la, book an appointment soon and get the latest ultrasound done, okay? They'll give you the real picture and what to expect moving forward. Thinking of you!