Clearblue Advanced OPK Still Showing High Fertility-Done with Fertile Week

Christie
DH and I have been BD'ing quite a bit (did miss supposed O day though). However, my Clearblue Advanced OPK is still showing the blinky smiley face. I don't know what's up. I had some EWCM yesterday but today there wasn't really a lot. I hope we are still in the game for this month-really, really hoping!!! Thoughts????