When I realized I was pregnant with my daughter I quit in two days (for the 2nd time) with the aid of that nicorette gum. ick One thing I did was play a mind game with myself by having a full pack of cigarettes at home. That way I felt like I was in control of the situation, instead of jonesing for cigs that I didn't have, I just didn't smoke the ones I did.
I know it wouldn't work for everyone, but it worked for me.