CB Digital OPK neg. But Positive strip?

I know you aren't supposed to really look at the lines on the stick of the digital CB opk but they look very close in color (LOW reading?) so I took a internet cheapie strip and it looks positive to me, is it??

I'm currently CD 8/9. I usually start testing high on the digital CB opk on

CD 7/8 or 8/9 which is today and it came back as a low reading this morning. I started taking Pink Stork Fertility pills this month so I'm hoping maybe it is extending my cycle like it should (currently 24 day average). Comment similar stories!!!!