Quick question

I’m 22 days late on my period; I’ve always been irregular but since I’m sexually active i take pregnancy testes just incase. Now the question is I’ve taken two pregnancy test already and will be taking another later in the week; the two test were both taken day 11 and day 17 of the lateness.

I used clear blue, the one with the blue dye; both test were negative but my question is the tests should be pretty accurate right? Since I did exactly as the instructions said to, I’m going to use the U-Check one with the pink dye just to be sure. But my question was clear blue is pretty accurate right?