Ay sis, alam ko na sobrang nerve-wracking yan lalo na kapag excited ka na! A few of us din nag-experience ng ganyan na dating counting from LMP pero ang dating ng ultrasound ay mas mababa, usually it's just because ng timing ng ovulation or conception, hindi always exactly when we think. Three weeks pa lang para makita ng baby on screen, kaya rest assured na normal pa yan at super common sa early pregnancy, pero definitely follow up with your OB like you're planning kasi sila ang makakapag-confirm ng dating at makikita nang maayos within the next visit. Sending you baby dust, momsh!