I know what you mean I was 18 when I had my first baby and gave up smoking when I was about 4months pregnant, after I had him, he was about a month old when I started again, I didnt plan too but I was on my own and the father of my child was causing alot of trouble, those who never smoked wont understand this but I went back to smoking to ease the stress, I carried on smoking, and 2yrs later found out I was carrying baby no2, by now I was smoking alot more so I cut down but never gave up, in my case this was a big mistake my son now has a very weak chest, when ever he gets a cold he gets a chest infection and has to have inhalers. My partner has asthma so I should have probably thought about it alot more but its very hard! For those who think I am irresponsible, I know I have myself to blame.
On a happier note I am ttc for baby no3 and after nearly 10yrs (i started at 14)i have given up! I havent had a cigarette for 7 weeks!
Damita there will always be people who give you a hard time for smoking while pregnant, just be strong and I wish you the best of luck, it is real hard at first but hang in there it does get easier!