Cupofteaplease and Firepile - I was a smoker too, after a cancer scare I stopped, if it's important enough you can stop. I have an addictive nature and I managed it. I find pregnancy and smoking around children would have been a reason enough for me too.
Sorry to offend you, I am not a prefect mother, who is... I'm merely venting my own frustrations in a forum where we are asked our opinions on a particular subject, whatever they may be... I am sure you know deep down it is wrong to smoke around children, or anyone.
I can't help being passionate about it, as someone who myself was born prematurely, an attractive shade of purple and spent the first touch and go 24hours of her life in an oxygen tent, I reserve the right to my opinions. I hate that my mother smoked around me all my life, when she was pregnant, and that my dad has lung problems despite never being a smoker.
I'd crawl over broken glass for my kids (as I'm sure you would too), going outside for a fag or getting the help to give up doesn't seem such a big deal to me in comparison.