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Coronavirus: Vaccination

Question for Department of Health and Social Care

UIN 2397, tabled on 17 May 2021

To ask the Secretary of State for Health and Social Care, what assessment he has made of whether (a) the covid-19 vaccines affect fertility and (b) those vaccines can safely be taken by pregnant women; and if he will publish available research on those issues.

Answered on

7 June 2021

The National Institute for Health Research (NIHR) is supporting the first United Kingdom COVID-19 vaccine study for pregnant women, funded by Pfizer. The NIHR continues to welcome funding applications for research into any aspect of human health, including COVID vaccination and fertility or pregnancy. There is also a breadth of research supported by UK Research and Innovation (UKRI) on COVID-19 and vaccines.

In the United States of America over 90,000 pregnant women have been vaccinated, mainly with Pfizer and Moderna vaccines, with data collected via the “v-safe COVID-19 Vaccine Pregnancy Registry”; these data have subsequently been analysed and the findings published in The New England Journal of Medicine (see Shimabukuro et al., 2021 and can be found at the following link: This concluded that no obvious safety signals were observed among pregnant persons who received these COVID-19 vaccines. The Joint Committee on Vaccination and Immunisation have therefore advised that pregnant women should be offered COVID-19 vaccines at the same time as people of the same age or risk group. There is no evidence that COVID-19 vaccines have any effect on fertility or your chances of becoming pregnant.