So I've been using Glow for about a month, tracking diligently as the app suggests, and I've also been using an OPK. Glow is predicting my ovulation day as today with symptoms I've had, but my OPK hasn't given me a positive LH surge. What's going on? This process is so frustrating! So many questions: am I testing at the right time? What if I'm not even ovulating? I'd love to hear your insight and your experience.