So I have been <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> using opks for about 5 months now, this month has been pretty confusing. I never peak after cd 15. usually its between cd 13-15, I am currently on cd 13 (and my tests are veryyy low now). Usually I gradually get my positive. This month it looks like I peaked on cd 10, but may have missed it slightly (possibly peaked overnight). Thinking it could have happened over night on cd 10/11. What are your thoughts? Trying to figure out if I have already O'd this month or not, I have been taking maca root so perhaps that caused me to ovulate a few days earlier than normal?