Is it possible??

This cycle was my second round of Clomid..I used CB Digital Opk with dual hormone..I had 9 days of flashing smiley & no peak...My last AF was 03/26.

I'm due AF in 8 days but for the last 2 days I've had bad nausea,slight cramping,tender breast & I'm extra tired...

What I'm asking is could it be possible I OV early or the test just didn't pick it up??

I don't wanna take a HPT if I didn't even OV