Temp not rising?

Je

I started tracking BBT with Ava. I definitely ovulated yesterday (positive OPK and wonderful); my temp dropped however it still is dropping. I’m new to BBT tracking, but isn’t it supposed to rise? A little nervous to see another drop today.

Background - due to me taking fertilitea when I had normal cycles, my last 2 cycles were all over the place and I never had a positive OPK either of them. Really hoping I’m back on track this month!