ovulation disappointment

I'm suppose to be ovulating today. I took the test last night and got the empty circle (low lh). today on O-day I take it again and still nothing. Not even the flashing smiley face! Maybe I missed it. It's been 2 weeks since the day I started my period, which is when I always ovulate. So idk how I could have missed it! Anyone have some onsite into this ridiculousness?