I counted myself lucky that I felt so sick when pregnant that the thought made me want to puke, otherwise I know I would not have been able to give up. Many of my friends still did whilst pregnant with no probs & I know my sis stresses about it as she is currently TTC & has been addicted for a long time now.
Best thing for me is I have not taken it back up...though, naughty, naughty did have a couple with my sis over the Chrissy period as it had been 8months since we saw each other & had a few drinky poo's.