My periods are irregular so how will I know for sure as far as I know I have never gotten the whit discharge that I was told is how u know ur ovulating... My last period was June 7th- June 11th  what day will I ovulate my glow don't say what day I would ovulate one of my other apps say I will ovulate tomorrow and one says I will today how do I know for sure if I don't get the whit discharge Please Help