Hi ladies! I just had a question about <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a>. I am TTC my rainbow baby and currently AF is visiting but we are ready to try again and I was just wondering at what point in my cycle should I start using OPKs? My cycles are kinda long usually around 35 days or so.. Do you guys find that this app is usually pretty accurate predicting your fertile window? Any advice would be helpful!!