Heavy smoker pre pregnancy

Hi mummy! I can't advise on the heavy smoking prior to falling pregnant part, but I used to be a heavy smoker and drinker 7-8 years ago before I met my husband. I drink and smoke everyday and I can smoke 1-2 packs a day, after being together with my husband (then bf) he suggested to quit together as we see each other in our future and he told me that it will somehow or rather affect my health and baby's health (when we wanna try) if I continued smoking. We've been together (including marriage) for 7 years and have never once went back to these bad habits, I also inspired my close colleague to quit after telling her my experience. I'm alr almost 27 weeks pregnant now and I have no regrets at all making that decision about quitting back then, at least I know I did my part to cleanse my body of these toxins all these years before trying. If I can do it, so can you! Anyway it's never too late to start now, do it for your baby! ❤️