Ay, that's stressful talaga! Based sa pelvic exam, ang August 23 is usually mas accurate kasi that's a direct measurement ng baby, pero since you've already filed with SSS under September 8, definitely go back to your OB and ask kung kailangan i-update ang records, marami sa amin nag-adjust ng due date mid-pregnancy kaya familiar na yan sa hospitals at SSS, hindi ka nag-iisa sa ganito. Better to clarify now with your doctor para sure ka with the claims, honestly, kasi once na verified ng OB ang accurate date, mas madali na i-process yan sa SSS, don't worry, you'll be okay!