Rash at 6 weeks

Lyndsey
So I noticed a few days ago I had a little bump at the very top of my thigh, almost at my underwear line, and it was slightly itchy. I didn't think anything of it but today when I went to get bloodwork I noticed little red spots on the inside of my elbows. When I got home I also found them on the back of my knees and if I rub them they become itchy. They are also a little on my chest and stomach but not as itchy. Anyone else ever have this or know anything about it. I will check with my dr in the am but figured I would put the question out there. Not sure if it's pregnancy related or not.