Sunday OB Tips Bago Matulog ✨😴 Hey mommies! Just a little reminder — ang due date po ay hindi parang chismis! Hindi porke may latest ultrasound scan, yun na agad ang totoo. 😅 If you’ve got a sure menstrual cycle (LMP), your estimated due date (EDD) is based on that. Pero kung medyo magulo ang cycle mo, then the first trimester ultrasound is your best bet — kasi it only has a 5–7-day margin of error. 👉 Second trimester (14–27 weeks): margin of error is 10–14 days 👉 Third trimester: medyo tric