Ohhh I think what you're asking is whether period delay doesn't always mean pregnancy show up on test kan? Yeah, a few of us experienced that, sometimes the hormone take a bit longer to build up enough for the test to detect, or your cycle just delayed for other reasons like stress or hormonal changes lah. If your period is late and you're worried, better take the test a few days later or check with your doctor to be sure, sebab each person is different kan!