Period late.

Samantha

Hey ladies, I am 3 days late according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> app and my Flo app. Both apps are always accurate and I always start that day, this time is different i haven’t even had any period symptoms and my boobs and back always hurt atleast a week before it starts. I took a pregnancy test just to be sure and it came up as negative. Is it to soon to test or is my body just being weird?