Sis, honestly ang confusing nito kaya kailangan mo talaga mag-check with your OB para ma-clarify, sometimes timing ng test or brand differences can cause discrepancies, pero yung doctor lang makakasiguro talaga kung buntis ka or not. A few of my mum friends din nag-experience ng ganito at nakita nila through blood test o ultrasound pa lang ang totoong sagot, kaya huwag mag-assume based on the tests lang!