No BBT rise after ovulation?? Help!

So I'm so confused... My bbt was all over the place in the beginning (see chart) compared to normal and I've been getting positive OPKs (surprisingly darker today) for the past 3 days and still no rise. I normally have an obvious rise.  My usual ovulation is around CD 11 or 12 of my 26 day cycle. I have had cramping/pelvic pain and headaches the past 2 days which I assume was my egg releasing.  My AF was unusual this cycle too... Normally it's 4 days of AF and 1 day spotting but this time 3 days (medium, heavy, then light-medium) followed by 4 days of heavy light brown CM. 

HELP!!! Anyone think they know what is going on?  Did anyone get a BFP with no bbt rise? Should I maybe expect the rise the next day or two?