Temp help

Hey ladies! I'm at 13dpo and can expect AF today or tomorrow. I could NOT sleep last night but finally fell asleep at 230am and woke up at 430am feeling rested so I temped (430 is my usual temp time) but then realized it had only been 2 hours. More crappy sleep after that and woke up suddenly to my dog literally loosing her shit lol so I couldn't temp again to double check. At 430 it was 36.77 so it gives me a big spike. Not sure if I should trust it or not... What do you think? Thanks