Help reading opk tests!

Phoebe
I need help! I'm assuming that I will know when my ovulation day is because both lines will be dark and pretty much equal right? These tests are day 10,11,&12. I have been on clomid with this month being my third cycle. My dr said to have sex eod from cycle day 11. Which we have done for the past two months. I decided to do the ovulation tests from day 10-17 this month since we weren't successful the last two months. Please help.