Easy @ Home false Negatives?

Back story:

Hopefully this is where I would post this:

My period is now 5 days late with no sign of it coming anytime soon. It’s never late more than a day (and usually I’ve had spotting to indicate it’s coming).

I had slight brown spotting 10DPO last 2-3 days.

Easy @ Home has shown negative 3 times now.

I’ll test with a different brand in the morning but- if I’m NOT pregnant- something is very wrong lol.