I smoked wene I was pregnant(bad, I know-but, was also an alcoholic DID"NT drink) but, if you on ly smoke 1 a wk. then I'd say quit-won't be that hard- & by the way all 3 of my kid's were fine, not small, defect's & such-7lb.er's really do wish I could have quit smoking(smoked more than you) but, not drinking was hard enough- just quit-not worth your worry.But, to be honest 1 isn't bad.