Glow keeps changing my fertile days! Originally my fertile days were the 17-22 but every day with a non positive opk it extends it. Now I have to BD through Wednesday and im not gonna lie. All the BD is taking a toll on me. I've had a uti the entire time and am on my second round of antibiotics. Anyone else have this frustration? Did you ever get your positive opk!? First month with opk and I feel like I'll never ovulate!