Anyhow, don't take my word for it. Have a look at what the experts say.
Here is some good material on the matter. Theres is heaps out there.
"Why is it so dangerous to smoke during pregnancy?
Cigarette smoke contains more than 4,000 chemicals, including truly nasty things like cyanide, lead, and at least 60 cancer-causing compounds. When you smoke during pregnancy, that toxic brew gets into your bloodstream, your baby's only source of oxygen and nutrients.
While none of those 4,000-plus chemicals is good for your baby (you would never add a dollop of lead and cyanide to his strained peaches), two compounds are especially harmful: nicotine and carbon monoxide. These two toxins account for almost every smoking-related complication in pregnancy, says ob-gyn James Christmas, director of Maternal Fetal Medicine for Commonwealth Perinatal Associates at Henrico Doctors' Hospital in Richmond, Virginia."
http://www.babycenter.com/0_how-smok...aby_1405720.bc
