Opk fluke or actual positive?

I'm not sure exactly how the clearblue digital reads via the lines. Most I see posted are as dark or darker than the co troll line. Below is a pic of what I'm seeing upon removal of the stick from the device. The one towards the bottom that is away from the others was when I got my smiley face. And it was back to negative 8 hours later. Fluke or actual positive reading? (I did have some mild cramping and random pains on my right side yesterday afternoon)