Ay, yan talaga ang confusing part ng pregnancy apps! Iba-iba kasi kung paano nila kinakalkula, some apps count from last period, iba from conception date or kung kelan mo na-confirm sa ultrasound, kaya ang dating weeks pa lang versus actual pregnancy age na. Best thing to do is check your latest ultrasound results, kasi yun ang most accurate, yan ang reference mo talaga, hindi lang basta app calculation, lalo na important ito para sa important milestones at appointments mo sa OB-GYN, so ask your doctor kung anong weeks ang tama based sa scan mo para peaceful of mind ka lang!