Help please! 2 days late and BFN

Erica

I’m 2 days late and took a test this morning, it was a BFN. I have slight cramping but other than that no signs AF is coming. I’ve always been regular so I’m so confused. Has anyone been 2 days late and got a BFN only for it to change later? Should I test again? I’ve been TTC for a few months now. Thanks!