AF due today, she's a no show, glow switched her arrival date

Amanda • Happily married for 13 years ❤️ Mommy to 8 beautiful kids
AF is due today, she shows up first thing in the morning usually. Not today. Now glo changed her arrival date to Wednesday? I took a hpt on Saturday morning (14 dpo, glo told me to) and it was negative. I had really bad cramps all day Saturday and I was sure AF would show up two days early, which never happens though. So no AF and negative test, idk what's going on!