Is this normal?

We are TTC baby nr 2. I am currently in my TWW, and have been experiencing higher body temperatures. I can feel my cheeks getting hot, almost as of it is burning. I am not sick and do not have a fever. However, my temperature is higher than normal. It's normally 36,3-36,6 degrees celcius. But has shot up to about 37 degrees plus. As my body is much warmer than normal, I also get cold quicker, its as if my body is more sensitive to changes in temperature around me...

Has anyone else experienced this? Is it normal or could it be due to hormone imbalance?