You ovulate 14 days before your period... It's a little confusing. But basically, if you believe this is your period, then wait until your next period, plot on the calendar, and once you get it, see how long your cycle was and plot that ont he calendar. Then count back 14 days from when your next period is due, and that's when you should ovulate.
Your discharge may become clear and stringy/sticky during this time.