Smoking while pregnant

So I no it's bad but I've had massive amounts of stress which I was smoking because of before I found out I'm pregnant, I'm trying to wean myself and quit I'm too worried to cold Turkey this time do to extra stress I already have, so my question is has anyone else smoked and weaned off smoking during the first trimester and their baby been fine? No judgement please, I should be completely weaned by the end of next week I just worry about the baby but I dont want to cold Turkey and miss carry due to all the stress.