Someone help me—itchy all over !

I’m 31 weeks pregnant and this is the second night in a row after I shower and put lotion on that I’ve been so itchy that I can’t sleep! I’m itchy all over I’ve lathered so much lotion on and it’s driving me insane I’m so uncomfortable. This is my third pregnancy and hasn’t happened before so is this normal or do you think this itchiness is a sign of something wrong? I know it’s getting to be winter so last night I just thought it was dry skin but tonight I drenched coconut oil all over me and my skin still feels dry, itchy, and like it’s going to rip.

P.S. I have no rash