Clomid and opks

Jordan
I took my first round of clomid days 2-6 then started taking opks. My MD told us to BD every other day days 9-15. I am currently on day 13 and have BD every other day since day 6. These are my opks from the last 4 days (take them AM/PM). Are the last 2 getting darker or is it just wishful thinking? They are from last night and this morning. Never got any positives before clomid so not 100% on what a positive looks like