Extremely itchy legs and feet sometimes other parts

I’m 34 weeks 3 days pregnant and the itching keeps me up at night! I thought it was from the laundry detergent so I switched but it didn’t help. I don’t use any fragrant lotions I only use natural oils or Shea butter.

I have no idea what it could be. I don’t have a rash. I have tiny little scabs that look like a rash from where I have scratched myself in my sleep. My arms, hands & belly are itchy some but my legs and feet are intense. It seems to be getting worse but I have no rash which is the most confusing to me.

Should I call my doctor? My next appointment is the 27th