So confused…

So last night after a 12 hour shift I took two pregnancy tests. 1 clear blue dye and 1 clear blue digital. I did not see anything on the clear blue dye whatsoever yet the digital said “pregnant?” Has this ever happened to anybody? I took another when I got home approximately one hour later and it said “not pregnant.”

Of course I’m going to take another tomorrow morning and get blood work Monday. I’m just kind of confused and don’t know what to think. If you’ve went through something like this please share if you don’t mind.