3 days late all negative tests

I’m looking for some positivity.

Today marks 3 days late for af, no sign of af coming either. All negative tests. I’m usually like clockwork, but I feel like if I was pregnant I’d have a positive test at 3 days late right?

Anyone else get negative tests at 3 days late and it turn out fine still? I’m trying to be hopeful, but I don’t want to get my heads up