Pregnant or not pregnant?

Arolynn

The one on top was taken this morning with FMU. And the line is darker and it came up within the time frame.

The one in the bottom was taken yesterday morning with FMU and the line is faint. Not as dark as the one taken this morning

These two were also take this morning with FMU and they are both clearly negative. I'm 10DPO and AF is not due on the 24th. Can someone please tell me what's going on? Am I pregnant or not. I thought these name brands were supposed to detect pregnancy early.