Ovulation test(s)

I know this test is negative but approximately how soon will I ovulate? I never get a peak test it is never as dark or darker than the control line even when I conceived my son three years ago. I took letrozole day 5-9 af lasted till cd 14 I’m on CD 27 today. I’m guessing my next cycle will start on or around the 27th. Thanks for your advice!!

3rd picture; the very bottom one is the one I took this morning. Top to bottom is Tuesday- Friday. All taken around 730-8am