Anak, this is really something you need to discuss with your OB right away, dating discrepancies like this need proper assessment, hindi lang online advice. Please schedule a follow-up appointment or call your doctor para ma-clarify nang maayos, kasi importante talaga malaman ang accurate dates for your baby's health and your prenatal care. Marami sa amin nag-experience ng confusing ultrasound readings, pero ang best reassurance talaga ay direktang usapan ng doctor, wag mag-stress na lang, okay? You're doing the right thing na nag-ultrasound ka na, just keep communicating with your OB about this.