Ok, that's fine and totally awesome. You can operate under the assumption that is true every month for you if you'd like. But even if it is, I have to reply to questions for the benefit of every person who may read it and even if it is true for you, that does not then translate to every person who then reads this thread. All I can do is report on the factual findings of researchers which is that no one can pinpoint ovulation to the hour or day. :)