Confusing temps!

Sa

I took my temp immediately after waking up and it was 36.45C. Then I reset my thermometer and took it again and it was 36.72C. Didn’t move or anything...they were seconds apart. The first temp is below my cover line which makes me quite sad because I’m TTC, the second, above!!

Is it normal to have such discrepancy?

Btw, this circle I was on Clomid + Ovidrel and now I am on Progesterone, so I don’t know if the meds are messing with my temp.