Pls don’t judge. Need help

Please don’t judge. Need help Nag kakaroon ako ng sudden urge to smoke a stick of cigarette lang lately. Smoker po kasi ako pre pregnancy. Hindi ko rin naiintindihan eh, feeling ko dala ng pagod, stress and ng overwhelming feeling kaya parang namimiss ko. Kaso the thing is, exclusive breastfeeding kami ng 1 month LO ko. I know it’s not good for the baby…I think? Ewan ko. Ano po kaya puwedeng gawin para mawala tong feeling na to? Thanks po