Sis, I know ang anxiety mo ngayon, pero kailangan mo talaga makita ang OB mo ulit as scheduled, lalo na may delayed period at positive PT ka! Ang thickened lining at walang makita on ultrasound ay kailangan ng proper follow-up at expert eyes, hindi guess game lang.
A few of my mum friends had delayed timing din sa first scan, kaya importante talaga mag-follow up on time, don't skip that appointment ha! Sit tight, and let your OB guide you through this properly. You're doing the right thing by going back.