CB flashing smileys .. Help? 4 days & now low O???

[xloulabellex]

Ffs... CB test says I had 4 days of flashing "high fertility" and then today's was back to O "low" fertility.

Wtf.. Oh great so what, I didn't ovulate!?!

 

[mrsed]

I didn't think they went back down. I thought they flashed until a solid? Maybe it's faulty?