3 days before AF, bfn

Courtney • Ttc 1+ year
So I just couldn't wait any longer and tested 3 days before expected AF and BFN. Anybody tested negative right before AF and then positive a few days later? I even used a really sensitive pregnancy test. I know it's possible, but I'm feeling like my chances are slim this time, this was my first cycle on clomid. I'm still praying this is my month.