Need help I'm using many apps to try and see which is the best at predicting ovulation currently ttc 2 well I use opks last month to get an idea didn't get positive till cd15 so apps said ovulation on cd16 well i didnt have a line at all till yesterday I'm currently on cd17 and think I'm close to positive but I've ran out of opks ordered some so hopefully come in post in tommorrow what should I do count tomorrow as a positive if they don't come??? Added picture if that helps