Is this normal?

Jordan

This is my first cycle temping, and i have been taking my temp as soon as I wake up before I get out of bed. I do have a history of not getting my period (therefore ovulating) naturally and for the past three cycles have been on Provera and letrozole... Not sure If either would affect temps, but mine seem to be getting lower and lower and have a much larger span than most others I’ve seen. 96.3-97.8 overall. Also, I do keep my room well cooled. Obviously I’m going to keep temping and look for a spike, but I was just wondering if it’s normal to have such a large range in temps. Thanks ladies!