3dpo temp

What temp should I go off of???

I took my temp this morning when I woke up and it was 97.5 (usually I run low like high 95s to low 96s) I hadn’t moved around much and decided to get something and hurry back into bed, took it again just to see if it was still the same and it was 96.5…was probably about 5-7 minutes between those two temps.