Smoking During Pregnancy (IMAGE) Spanish Foundation for Science and Technology Caption The babies of women who smoke during pregnancy are between 180 and 230 grams lighter than babies of women who do not smoke. Credit SINC Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.