OPK question.. Pic included

Kari • Mother of two (soon to be three) girls 2008, 2011 & 2015 :)

Did I possibly miss my lh surge? Or it just hasn't happened yet? I started at cd9 and am currently at cd 18. Idk how long my cycles are (First month TTC after Mirena removal - first period after removal was 6/9-6/13). I just feel as if my tests are lighter (tests are cd9-cd16) and almost non existent.. CD 16-CD18 I've have had no line. What do you think? Could I still ovulate just late? When do you ovulate?