First trimester rash?

Elizabeth • Mama to Evelyn born 2.27.2021!! 💕

Anyone ever get a rash during the first trimester? I’m six weeks pregnant. I woke with this rash yesterday morning, faded through the day and then was back this morning. Not sure if I should relate this to being pregnant or something else. It’s only on my left arm and a little on my right arm. I washed my sheets, haven’t eaten anything new or used any new soaps/lotions.