Galloping Cats

When I saw Dr. Twelve last Tuesday, she seemed to think I was 2-3 days away from ovulation. Now, on CD 16, I have yet to see a positive on the OPK and I’m annoyed. I need to know the date so I know when to start/stop the progesterone, and I can’t figure out if the sticks failed to show the surge this month (they’ve always worked for me in the past) or if it’s still to come. Argghhhh.