Did you mark the high temp as a fever? If I were you I would keep HIO (if possible, I know you were sick) and temping. If its incorrect, FF may adjust a little later down the road.
When it comes down to it though, just keep the day difference in mind when making testing plans or waiting on AF. There will be no need to be thinking "I am 14 DPO with no AF and no BFP what do I do???" (that is not a reflection on you, btw, more the posts on this board)