Hi mama, honestly kahit 2+ weeks na from intercourse, sometimes the hormone levels pa lang ay hindi sapat to show up on a PT, it really varies from person to person, kaya di mo dapat mag-worry masyado! A few of us mums experienced the same thing na late ang positive kahit delayed na, so I'd suggest taking another test in a couple of days or checking with your OB na, they can do a blood test kung gusto mo ng more accurate result right away. Fingers crossed for you!