I had Cholestasis with my oldest son, but developed it when I was about 5 months pregnant. The itching was severe, all over my body from head to toe. It was also what played a factor in me rupturing during delivery. I started developing severe itching on my collar bone area and the back of my neck for about 2 days now, there really isn't a rash but it is slightly red.
Cholestasis usually does not occur until the last 3-4 months of pregnancy. I'm concerned because it can be a life threating disorder.