Ok, I've been using The <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Period Tracker</a> 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 <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> 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??