Hot knees, elbows, ears & face???Pics for reference

Rebecca✨ • 29,FTM to my 2 year old daughter && coffee-obsessed!
Hi ladies about 30 minutes ago I felt my knees getting hot. A few minutes after that I noticed my ears were hot. Then my elbows, then my face. NO pain, no raised bumps, just red and hot. I'm about 10 weeks pregnant and to my knowledge have done nothing out of the ordinary (no new laundry detergents, no new foods, etc). I've called my doctor to ask what could be happening but I'm curious to see if any of y'all have experienced the same problem?