According to glow my fertile window was supposed to start on the 12th. So naturally I started testing daily and having lots of sex. Still haven't had a positive ovulation and it keeps moving my fertile window back. Frustrated because all the intercourse from earlier on the week Wont do us any good. And sometimes you get to the point where your little sore and just want to give up for the month! Now my fertile window supposedly should've started on the 14th! Why can't each month just be the same cycle LOL?!