So I've been using an OPK since Sept 9th, which was CD 11. It's now Sept 19th. All of the tests have been negative. Am I testing too early or too late? So confused please help.
You could be early or late.. Most women ovulate CD 14. However, I ovulate earlier. I ovulate CD 9 or 10. I would keep testing a few more days. If you still get negatives, I would test a little earlier next month.