2 Days Late And Having Watery Cm A Lot Of Cm And 2-3 Days Late For AF...?

A lot of cm and 2-3 days late for AF...? - 2 days late and having watery cm

AF my last 17th August. I'm in a normal cycle of 30 days. I OPK after 9-11 days, and sure if I ovulate on day 31 (cramps sense). Cramping then lighter later by one week and not for a few days. I took a HPT the day before AF due, and it was a BFN. I am now 3 days later and still with a lot of cm. I tend to go straight to dry before you inch of time, but I never leave, just get watery (sorry if TMI). In any case, I will show in the morning. What do you think?