super confused about digital opk

I have two clearblue digital opks. The pink one, that shows the empty circle and then the smiley face. Then i have the blue one that has the empty circle, flashing smiley and solid smiley.
(I use both just to confirm positive and negative results) 
The past week, they have all been negative. Yesterday around midnight (thats when i get home from work) i took the blue one and got a flashing smiley. So, 6 hours later i took it again because i was doubtful that i was ovulating. Got a flashing smiley again. I went to bed, woke up around 1pm. At 2pm I decided to take the pink one, its negative but im having heavy ewcm
I know you're ony supposed to take them once a day, not multiple times but i really just wanted to confirm that i was ovulating. Now im upset because one was positive and ones negative