Ate, alam ko ang anxiety na yan! Please go see your OB again para sa repeat blood test (HCG) or ultrasound, faint lines can be tricky, and a thickened lining + PCOS needs proper monitoring, hindi lang PT. Your OB is the best one to say if Duphaston is safe for you given your situation, kaya don't start any medicine without asking them directly, okay? A few of us moms have been through confusing results like this, and the follow-up check talaga ang nagsagot ng lahat. You've got this!