When to get a prescription?

St

At what point do you call the doctor and get a prescription for nausea? I haven’t thrown up at all, but I have felt nauseous pretty much all day every day for 2 weeks now. I’m 8 + 4 tomorrow. I don’t enjoy food anymore, everything is gross, I can’t take care of my toddler on my own for very long, and nothing I’ve tried has worked so far. Working full time also sucks when you feel this way.