Surveys show that, despite warnings, women are using cannabis during pregnancy to mitigate mood imbalances, stress and nausea, among other things But, is this safe? Does it hurt the baby? Medicine does not seem to have a definitive answer to these questions because proper studies have not been done. And it’s difficult to blame poor outcomes on cannabis since women who smoke cannabis during pregnancy tend to also smoke cigarettes. There is however a Jamaican study that followed 59 children of mothers who smoked during pregnancy from birth to age 5 and saw no difference between these children and those of non-using mothers.