Hey!

I think FF may have your O day wrong, its really hard to tell with your temps being so up and down, plus your CM goes non fertile shortly after. They also consider anything before 15DPO early, so see what your temp does tomorrow. What test did you use today?
One more positive note, is that your chart does look a girl over at the TTC#1 board whose temp kept dipping below the CL and she did get a BFP. GL!!