I've been taking Unisom since around week 7 when the nausea hit me like a ton of bricks. Combined with B6 it has worked wonders and my doctor advised me to stay on it even though I am well into my second tri now. I've been cutting it down from a whole tablet at night, to a half, to a quarter, and last night I tried to not take it for the first time. I feel awful today, nausea and all. Anyone else in a similar boat, or still taking Unisom?