Last night and the past week my ovulation fertile week according to glow was set for Tuesday July 21st through Monday July 27th. Then I open glow this morning and it's been changed to Sunday July 19th through Saturday July 25th. Which means I didn't have sex on my most fertile day if that's right I completely missed it! Is this a bug and I've missed my chance? I even got a notification saying I had sex on my most fertile day. I'm so mad. My husband and I made sure to follow the app closely and plan and then I wake up and things are changed.