Explains how cannabis use during pregnancy and breastfeeding can affect a developing fetus and infant. Key points include: the effects of cannabis can be passed onto the fetus through the placenta or onto the baby through breastmilk, exposure to cannabis can impact the baby’s mental and physical development, and there is not enough evidence to support using cannabis to treat morning sickness nor pain. Anyone trying to conceive, or who is pregnant or breastfeeding will find this resource helpful for making informed decisions.