Could be PUPPS rash .. had it for my first pregnancy it was the worst only way to get rid of it was delivery luckily it started a week before my due date I only suffered a week. Best wishes your way honey
Pregnancy does intensify any allergies you have or may cause allergies you didn't have before. My ears itch like crazy since being pregnant. I didn't have allergies before but do now.
If its severe enough for you to want to go in you should. It could be nothing but it could Also some type of allergic reaction to something.