Could I have cholestasis?

I was recently diagnosed with PUPPS but have become paranoid that it's actually cholestasis. In the past few days my stools have become much lighter in color, my urine is pretty dark, I am suddenly nauseous again, the past week or so I have had a lack of appetite & my skin looks jaundice. The itchiness started on my stomach but is now everywhere. My legs, hands, feet, arms, butt. Only my chest and face are free of it. It is much much worse at night. I have been trying to get a hold of my ob but can't reach her since it's after hours. I'm very scared, should I go to the er or does this sound like typical PUPPS? Baby has also been moving a lot less. I just did kick counts and we were fine- didn't even need a full hour to hit 10 movements, but they are very subtle movements. I'm just very very scared. Currently 39 + 2 days. Please help!!