One of my best friends had a severe itch with her second pregnancy and it was pregnancy related but I can't for the life of me remember what it was. I have a feeling it was liver related though but can't be sure I also can't remember if she had a rash as well but to her it felt like constant chicken pox!

I hope your itch buggers off soon. My poor friend had it until she gave birth so I'm hoping your case is different!