Ovulation date??

Ki

So I have been tracking my ovulation this month. I ovulated the 10th of this month according to the test and from then the test got darker which I will share a picture at the bottom (second picture) but today I had some mild on and off cramping on one side of my ovaries so just for curiosity I took an ovulation test (first picture). It is definitely negative but it is still pretty dark for me ovulating 11 days ago. Why could this be? Should I take another ovulation test? Im confused