I only missed one temp but the open circles are where I woke up at like 5am vs 7am so I had to go ahead and temp...except the one crazy high by itself that was after a night of drinking. I played around a little didn't add anything to future dates but if I discard the drop my CH are back.
ETA: if I add future high temps it marks yesterday as O
Wasn't blaming you on the missing temps...my chart has way more missing than yours, but just pointing out that it makes it tougher to figure things out. Starting earlier in your cycle can also help to figure out where the cover line should be.
I can see how FF would pick day 28. Assuming the temps stay up, I personally still think it was either day 22 or 23 due to your CM. I wouldn't throw the low temp out, but just keep it in mind when you test.
Is this your first month temping? If not, you can compare what your coverline normally is. Also, if you don't get pregnant, you should be able to tell your O day by comparing your lutual phase length.