Ovulation and confusion

Faye • Baby #1 born with wings jan 14 xx Baby #2 due February 2015 xxx
So I've been testing my ovulation this week since Monday I've had a flashing smiley (high fertility) and expected it to be peak today but it's still flashing. Has anyone had a flashing smiley for a while and then had peak? Am worried I'm not going to ovulate this month ??