If you are considering having a baby and start breastfeeding, or thinking about that in the future, before you start taking Provigil, you need to consult your doctor to understand the risks and benefits of taking this medicine.
There has been no studies made to test the effect of Provigil on humans, as it can be considered unethical to test if he medicine passes thru the breast milk to a baby.
However we have to assume at this point that like many other medicines it does pass thru.
Provigil has a few side effects, therefore it needs to be taken with caution.