Could I Still Be Pregnant......?

I’m 31 Days Into Cycle.

I just know I’m pregnant it’s weird.

But I did a £ pregnancy test this morning, completely negative.

Am I giving my self false hope, or could I still be the pregnant?

I’ve got no signs of AF coming. No Pains, No Pinkish Bleed, Which Are Both Things I Usually Get.

How long can it take for you to show positive on a test? Or am I clinging on to false hope??

Please help