Is the Pfizer jab safe for pregnant women and breastfed infants?

According to official regulatory documents from Health Canada, the safety data is inadequate:

“The safety and efficacy of Pfizer-BioNTech COVID-19 Vaccine in pregnant women have not yet been established.” (Sect. 7.1, p. 12)

“It is unknown whether Pfizer-BioNTech COVID-19 Vaccine is excreted in human milk. A risk to the newborns/infants cannot be excluded.” (Sect. 7.1, p. 12)