Temp Rise on the day of expected AF!?

So I’ve never had a temp rise close to AF! I’m 2 days late, and my temp is rising! My temp always starts dropping 2 days before expected AF!

Any idea what could make your temp rise instead of dropping? I’m pretty sure AF is on the way, as I have similar cramps to those I get every month, and I’m not feeling any different! I haven’t tested though, trying to wait to avoid disappointment.

Any insights will be appreciated :) thank you