Very intesting... also doesn't help I guess when some smokers won't (or can't) give up smoking before TTC, and some continue to smoke during & after pregnancy, poor bubs.

Funny thing is, my mum had 4 children, (me being the 2nd) & she smoked through every pregnancy but with me, coz everytime she lit up, she felt like throwin up. Thing is, I never smoked & both my brother & sister did. My elder brother died when he was 2 so never know if he would've been a smoker. I was destined to be a non-smoker & I can't stand the smell of it, especially when people smoke right in front of you & you have no-where to go.