Hot flashes

Anyone else have this during early pregnancy? I am not sure if it's a reaction or symptom. It's happened two days in a row and twice yesterday. I start feeling heat on my face, then next thing you know my chest, back, and arms are hot for about an hour or two. It feels so much "hotter" than my skin appears. I do not know if I am pregnant, I just thought I would ask. Thank you, all, so much.