If you have any doubts always bring up your concerns with your doctor.
I get itchy skin sometimes usually when it's dry, I don't drink enough water, I eat bad, don't get enough rest. It itches at first then becomes a dry/scaly patch. With some TLC and lotion, it goes away.
This is my second pregnancy and I have noticed that my eczema flares up more often as well. Normally when I'm not pregnant, I only get it when I'm super stressed or tired. But my hands have been itchy and I get patches of red scales that take a week or two to heal.
Have you changed your shampoo or facial wash. If not call your Dr. Sometimes itching is a sign of problems with the gallbladder and or liver. They can do blood work to make sure.