Hi Crissy, I think you may not have ovulated yet. What were you doing on cd13? that temp just seems out of nowhere. Maybe you should mark it to be ignored if you were up all night or sick. I think that temp is making ff not give you a coveline (when you enter your fakies)
Have a look at my chart. I have longer cycles (35days) and o around cd21. I also get fertile cm for ages before o so i wouldnt worry about that too much.
O pain now is a good sign. If you can just dtd when you can until you are certain.
Good luck

Oh i just had another look and noticed that you were sick around those days when you had high temps. That might be your cause