AF due today. Watery CM. BFN YESTERDAY!

Momma 🦋 • Mother of 3💕 SAHM💗 Wife🤍

I’m due for AF today but so far a no show. Normally she always arrives while I’m asleep. No PMS cramps and having watery CM. I tested yesterday with FMU and had a BFN. Advise on what may be going on?

AF is normally on time!