Irregular Periods & HPT

Megan
I've been having quite a few pregnancy symptoms for the past week and a half, my AF usually comes a few days sooner than what Glow tells me. I've always had irregular periods, Glow says my AF is already due but I keep getting BFN with hpt. And I never have these symptoms with AF! There's not even signs of spotting! Has any else had this issue with lack of BFP and irregular periods?