Ya I think you are like 7 days past. They are basing that on your +opk's too. The same thing happens to me every month. I get my +opk on low temp day and then its hard to know when you are really o-ing. My guess is that you o'ed the evening of cd14. Maybe a bit earlier. A lot of people take a few days for their temps to go up -- I am one of those people. It looks like that is what happened. I don't agree with ff -- I agree with you. You are most likely 7dpo.
Wish we had a timer that goes off to say "ding -- you just ovualted" :)