AF WHERE ART THOU?! - SO CONFUSED

Dee
Hi glow TTCers!
My period is now 6 days late,I have sore breasts (when you apply pressure) and CM on and off! I have no idea what the fudge is going on... I've never had regular cycles... I'm judging O based on EWCM and I had some ovulation spotting too! Can someone please help as I've been taking tests and they are all coming back negative and AF is no where in sight?!