Dont even know if i ovulated

Ran out of CLEAR BLUE OPK WHILE IT WAS STILL FLASHING... DONT KNOW IF I EVEN OVULATED LAST MONTH TAKING FR TEST WHEN I GET OFF WORK LATE HOPE I DIDNT WASTE MONEY HAD SEX THE WHOLE I HAD FLASHY SMILEY FACE THO...HOPE IT DOESN'T COME OUT NEGATIVE