Hi there Lu! Just had a peek your chart hun.
Personally i would not try to correct the temps, as FF does not recommend it. I If you think it's only gonna be these 2 days that are off, you can put in the later temps as "sleep deprived" on your chart, which means the temps were taken with less than 3 hours sleep.
If it's a persistent problem, I would suggest setting your alarm for a horribly early time, when you are usually sound asleep. You will soon get into the habit of automatically temping whilst half dead! It's best not to change your normal time mid-cycle though.
Hope some of that helps!
