I agree with jefa, the only thing I mess with on my chart are the times that I temp. I have it set to the same time every day even though I never temp at the same time. I work nights and my sleep schedule is all over the place so I just temp after any 3 hrs or more of sleep. This can happen at multiple times during the day for me so rather than having a bunch of empty circles I just make notes on the days where I get less than 3 hr blocks of sleep.
If I were you I would wait a few more days to make sure your temps stay above the coverline and then if they do, just discard that higher temp, or if they dont, leave it and assume you havent O'd yet.