going to call doctor tomorrow

He
I'm 13w4. Most days I can handle vomiting when I first get up or occasional nausea but then I've had 4 days like today(not in a row) where I can't keep anything down all day including water. 
I plan on calling into my doctors office tomorrow. I can't afford diclegis, it's almost $400 with insurance, I've looked it up and my coworker told me the same thing when she was prescribed it. What else works well without long term side effects? 
This is probably stupid but couldn't I take unisom and b6 otc and have the same effect? 

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