Anybody ovulate unusually early on Letrozole/Femara?

Top is cd11 and bottom is cd13. I've been testing twice a day, and am now on cd15. The line is still very faint. Cd11, the first day I started testing, is the darkest. The very latest I've ever gotten a positive is cd16. It might be a sudden surge tomorrow, I guess. One thing I've noticed though is that my nipples are sore today, which usually happens after ovulation.

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