D.H.
Hi C. ~
It could be PUPPS. I always forget what each letter stands for (even though I work L&D!), but it's something that pregnant women get and they itch like crazy! You should talk to your doctor. They may give you some cream or Benadryl to take, but the only real cure is delivery. I've even had patients that were induced because of it.
Good Luck! Hope you feel better!
D.