2 days late...

Ok, I've been using The period tracker for a few years now and I love it. I started using Glow this past month and glow has a different AF due date than my period tracker app. According to that, I was due yesterday, Glow says Saturday but I NEVER start on Saturdays. Tuesday, between 7:00a-12:ish sometimes (rarely) Mondays.  I've had a ton of symptoms that honestly could suggest both pregnancy or period. I took a test Monday and it said negative....I'm gonna lose my mind waiting until Monday to test again. What do y'all think??