BBT question


So i use the Ava 2.0 bracelet to track my Basal body temperature. It’s quick and easy and all for me. But I’m confused my my temperatures are highest when I’m on my period and drop to my lowest when I’m supposed to be ovulating. I thought your temperature was supposed to go up when you are about to and start to ovulate. I also took progesterone to induce this last period and letrozole to help me ovulate.

Is this Normal or what I’m confused