I’m so confused with my OPK results. I finally had my period after my miscarriage in January, so I decided to track my ovulation with OPK. I started as early as CD6, then twice a day from CD12. Every test was very light until CD17 in the afternoon. The result was not positive, but it was definitely the darkest I’ve seen, so I thought I may have a short LH surge & caught the end of it. Because I was having a hangover (from a friend’s wedding Saturday night), we didn’t get to BD until the early morning of CD18 & again at midnight. Today is CD19, & now both of my tests are almost as dark as CD17 again, while the other tests in between were very light. I know the test line should be as dark as the control, but these very dark lines are confusing me very much. I wonder if those tests in between were just because the urine has been diluted & I’ve been surging the past 3 days? Have I ovulated? Did we do BD in time? Also, yesterday & today, I have been feeling mild cramping in my lower abdomen, so maybe ovulation cramps? Any answers will be greatly appreciated. I am attaching a picture of my tests.