Ay, ganyan talaga ang dating ng ultrasound dates vs LMP, lagi may slight difference! Based sa LMP mo, August 7 ang due date, pero ang ultrasound sa September 3 will give a more accurate reading kasi nakikita na ng doctor ang actual size ng baby, so trust that one more, usually mas precise ang dating ultrasound, lalo na kung first trimester pa lang. Best na i-clarify mo directly sa OB mo kung bakit may difference at which date sila gamit, para sure lang both of you are on the same page!