False positive or false negative?

Angelica

So I got my first BFP on Friday afternoon. Second one yesterday morning with FMU. Third one this morning with FMU. I wanted to confirm with a digital. And I used it on my SMU just now. I even held it for two hours!!! And I got a stupid not pregnant. Now I’m worried.

Has anyone else had this?? I don’t want to give my hopes up and announce and then it be for nothing you know??