Clear Blue OPK help!

Me
Yesterday I got my first peak (no flash) smiley face, after one day of flashing smiley face. Today I went to test, evidently I have two digital sticks, because it came up as low. Then I found the other one, and it still has the peak smiley face. I'm confused. Does anyone know what this means? Did I ovulate yesterday and now my hormones are back to nothing? (Both tests were on fmu)