BBT confusion

I usually temp at 7:30. This morning, I woke up at 6:30 and had to pee, so I took my temp an hour early and got 97.34. I fell back asleep after getting up for thirty seconds and slept soundly for two hours. I temped again at 8:30 and got 97.74. I was surprised it was so much higher.

Should I just record the first reading on my chart? Should I average the two? Suggestions??