Hi mama! Based sa ultrasound mo ng April 14 showing 6 weeks and 5 days, that means conception happened around early March, so after your LMP ng Feb 22-26, usually conception happens around 2 weeks after the first day ng period mo, kaya around early March ito. The ultrasound dating is more accurate than LMP calculation especially kung di mo sure ang exact cycle mo, so trust that April 14 scan more than the manual counting!