funny story, when i was preggers i had the BAD morning sickness. one of the things that drove me up the wall was cigarette smoke. i was a smoker at the time. *yeesh* <-that didn't last long. going on 3 yrs as a non-smoker. you wanna quit? try morning sickness.
it got so bad that my poor man wasn't allowed to smoke on my patio anymore, he had to actually leave the building, go for a 5 min walk after he put it out, wash hands and mouth before coming back in to talk to me or i'd be gagging all over the place. i didn't leave my place for a month.
WHY i stopped leaving my place: i was dragging myself the block and a half to the nearest 7/11 for a slurpee when i got stuck at a red light next to some dude with a cigarette. next thing you know, poor guy has some random chick puking next to him (vomit splooshing onto his shoes, the whole bit)..... keep in mind i'm still not "some random PREGNANT chick" because i wasn't showing yet.... he was really nice about it, but when he asked me, with his cigarette-breath, if he could help me, it made me almost puke again....
pretty sure THAT guy thought twice about smoking next to random chicks at red lights....