You can get a + for 6 to 8 weeks after delivering or having a miscarriage. The instructions on the HPT should tell you. If not then you could always call the number on the box and ask. I remember when I was pregnant with my first baby, I was nervous and wanted to do everything right so I read the HPT pamphlet backwards and forwards, and I do remember it saying how long a + would show up after delivery or miscarriage. It was an E.P.T. Not the digital kind,just the regular. Go get one and take it, if you are having a miscarriage then it should come out +. I will be sending prayers your way. Hope it's not m/c, and it's just early af. Good Luck!