S.K.
You might also check with your doctor to see if it could be puppps
http://www.pregnancy-calendars.net/pupps.aspx
I think it typically shows up later in pregnancy, but I don't know that that's always the case. I got it at about 38 weeks during my first pregnancy and I had what looked like hives from mid-thigh to the top of my head. My doctor had me take benedryl to help with the itching and in the off chance that I was having an allergic reaction to something.