unisom alone for just vomiting?

Tenley

I'm 12 weeks pregnant. For weeks 8-10 I threw up 1x a week. Last week it was 3x, and today (w12d2) makes the 4th day in a row I've vomited. I was taking 25 mg of B6 for a few weeks and it seemed like it might be helping at first but then about 2 weeks ago I realized I often feel worse shortly after taking it and read nausea is a side effect of B6 so I stopped and at first I was feeling a bit better, but now this...

The past two days I've actually been feeling better most of the day so it's like the ms is getting better in some aspects and worse in others.

I'm hesitant to go back on B6, but think it's time to try adding unisom. Anyone use just unisom without b6 and more for vomiting than nausea in general? Or have problems with b6 alone but adding unisom helped counteract the problems with just b6?

How much should I take? My Dr said it was fine to try unisom when I was in a few weeks ago but didn't say how much to take.