Took a clearblue digital ovulation test...

I'm confused because mine only shows yes or no (smiley face or blank circle) but glow gives me the option to put "low", "high" or peak. Mine showed a blank circle and this is how the stick looks after removing it. So, high or low?

I'm on my 12 day and cheap test have shown faint lines too for 4 days now.

The difference between registering low or high puts me in fertile windrow with 13% chance getting pregnant or being out with 2,6% chance. I have been cramping for 3 days...