LL - reading about your c/m reminded me, this month I had watery c/m cd 13,14,15, slight ewcm cd 16 (only noticed after checking internally) & watery c/m cd 17 - which according to fertility friend is when I ovulated. I also ovulated 3 days earlier than normal so maybe you did O but your body changed it's pattern? Don't forget, I only got faint bfp 14dpo using IC. But it was as clear as day 17dpo using clear blue.