Cramping...no period....neg test

Royalty • Mommy of 4 ..12/10💜 5/2 💖 7/3💙 3/22💚
I'm due tomorrow for AF. But I have been cramping all day and yesterday a lil aswell... I normally start bleed as soon as cramps.come...which sin happening. I generally start either a day before or on the actual predicted day.....tmi..when I wipe its that mucus-y shiney discharge..what do u ladies think