Hay sis, I understand the worry! But honestly, kailangan mo talaga mag-consult sa doctor about this, hindi lang yung delay, but also to rule out other things na pwedeng mag-cause ng missed period like stress, hormonal changes, or medical stuff. A few of my mum friends din nag-experience ng delays for various reasons na hindi pregnancy-related, kaya hindi automatic na negative PT = walang bun sa oven OR positive later, kailangan ng proper check-up para malaman talaga. Mag-visit ka sa OB-gyn na, they can do blood tests or ultrasound na mas accurate. Fingers crossed for you, but let the professionals figure this out, okay?