Note: the UK document was modified since this was posted, at least at one of the source websites if not the link below.

The Canadian product monograph for the Pfizer-BioNTech COVID-19 Vaccine has warnings:

7.1.1 Pregnant Women

The safety and efficacy of Pfizer-BioNTech COVID-19 Vaccine in pregnant women have not yet been established.

7.1.2 Breast-feeding
It is unknown whether Pfizer-BioNTechCOVID-19 Vaccine is excreted in human milk. A risk to the newborns/infants cannot be excluded.

The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for immunization against COVID-19.

7.1.3 Pediatrics

The safety and efficacy of Pfizer-BioNTech COVID-19 Vaccine in children under 16 years of age have not yet been established.

You should not receive Pfizer-BioNTech COVID-19 Vaccine if:
*you are allergic to any of the ingredients in this vaccine (see What are the ingredients in Pfizer-BioNTech COVID-19 Vaccine?)
*have any symptoms that could be due to COVID-19. Talk with your healthcare professional ….

To help avoid side effects and ensure proper use, talk to your healthcare professional before you receive Pfizer-BioNTech COVID-19 Vaccine. Talk about any health conditions or problems you may have, including if you:
*have had any problems following previous administration of Pfizer-BioNTech COVID-19 Vaccine such as an allergic reaction or breathing problems.
*have a weakened immune system due to a medical condition or are on a medicine that affects your immune system.
*have a bleeding problem, bruise easily or use a blood thinning medication
*are pregnant, think you may be pregnant or plan to become pregnant
*are breast-feeding

And:

Reproductive and Developmental Toxicology
Reproduction and developmental toxicology studies in animals have not been completed.

There is a lot of important information in this article, some of which we have touched on in other posts, including concerns about infertility:
UK Government Warns Doctors About Infertility Possibility with Pfizer COVID Vaccine, But NO Warning to Patients!

It refers, for example, to two British government documents:

REG 174 INFORMATION FOR UK HEALTHCARE PROFESSIONALS

4.6 Fertility, pregnancy and lactation
Pregnancy
There are no or limited amount of data from the use of COVID-19 mRNAVaccine BNT162b2. Animal reproductive toxicity studies have not been completed. COVID-19 mRNA Vaccine BNT162b2is not recommended during pregnancy.

For women of childbearing age, pregnancy should be excluded before vaccination. In addition, women of childbearing age should be advised to avoid pregnancy for at least 2 months after their second dose.

So this is a stronger statement than in the above Canadian product monograph.

6 Breast-feeding
It is unknown whether COVID-19 mRNA Vaccine BNT162b2 is excreted in human milk. A risk to the newborns/infants cannot be excluded. COVID-19 mRNA Vaccine BNT162b2 should not be used during breast-feeding.

Fertility
It is unknown whether COVID-19 mRNA Vaccine BNT162b2has an impact on fertility.

Shorter document for recipients:
REG 174 INFORMATION FOR UK RECIPIENT

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