Why do all of my opks looks like this?

Please help a girl out, why do all my opks look like this!?! Ever since cd 9-10? We BDed on cd 8 and every other day since bc we are doing the sperm meet egg plan (bd every other day starting cd 8, and once u get a positive opk, bd that day and the next 2 days, skip 1 day and bd one last time). I am currently cd 16 and I usually get a positive opk on day 14. What is going on?? I am trying to stick to the plan but it’s getting hard since there has not been a definite positive!! Anyone had this?