Temping

Victoria
I have prob asked this before, not sure what to record. I got woken up around 3:20 so I went ahead and temped, it was 96.9, went to bed around 11:00 or so I think, but also woke up hot. Went back to bed and woke up around 9:00 and temped again just to see and it was 97.9. Which should I use, yesterday was 96.9, wouldn't be worried about it but Glow says this is the first day of my fertile days, any hell would be appreciated.