Safety for You and Your Baby See All  Smoking and Pregnancy in Safety for You and Your Baby Don't smoke during your pregnancy and limit how much time you spend in environments where there is secondhand smoke. ...more  Alcohol and Pregnancy in Safety for You and Your Baby Drinking alcohol while pregnant is a leading cause of birth defects in a baby. In addition, the risk for miscarriage and stillbirth increases with alcohol consumption. Read on to learn more.