Eh tu memang biasa la, app tracker kat server dorang sometimes delay or tak update real-time especially kalau timing conception versus actual LMP slightly off! A few of us had the same thing, I just manually adjust it dalam my head or contact their support to update, since your due date is what your doctor confirm yang paling accurate anyway, March 2025 pun confirm dah dengan clinic kan? Don't worry about the app discrepancy, the important thing is you track dengan your own notes or follow what gynae you set