Itchy skin all over body 18 weeks! Please help!!!

So I’m 18 weeks pregnant and for about 2-3 weeks, my skin all over my body, especially my neck, legs and top of arms are SO itchy!! Iv tried creams etc but nothing.

I itch during the day but worse at night!

I haven’t changed any detergents or anything.

Please any advice! It’s driving me crazy!!!!! 😣😣😣

Thank you