ofcourse it will affect your baby! I'm also a chain smoker 2 years ago then nagswitch ako sa vape. kasi 7yrs kaming ttc nung nalaman kong i'm pregnant, I immediately stop everything and eat healthier foods. magiging low birth weight ang baby mo kapag di mo yan tinigilan and might affect organogenesis or yung pagdevelop ng organs ng baby mo.
Ikaw bahala, baby mo iyan eh. Hangga't maaari iwasan mo at uminom ng prenatal vits.