Pregancy has made my whole body dry. I kid with my husband that I am going to take a bath in location. So with the dryness im do itchy. Just find some moisturizer or I actually found baby location works the best for me.
It may not be an allergy it could be from stretching. my face itched to I started getting dry skin. Your body goes through a lot of changes. do you have a rash? If it really concerns you it doesn't hurt to call your doctor to clear your mind and see what it is. Good luck :)