Aw nak, honestly kailangan mo talaga mag-consult with your OB agad kasi ito ay something na kailangan i-monitor closely, sa 33 weeks, maraming cases na tumaas pa talaga ang placenta by delivery time, pero it really depends sa individual situation mo at kailangan ng proper ultrasound follow-ups para sure. A few of my mum friends nag-experience din ng low-lying, at ang iba nag-deliver normally, pero seryoso talaga kailangan ng doctor guidance mo because at 0.7cm, ito ay closely watched condition at may specific instructions per person. Don't worry muna, pero get that check-up ASAP para ma-ease mo ang mind at alam mo exactly what to expect!