Claim: Nearly half  of pregnant women in the Pfizer Covid-19 vaccine trial miscarried.
Fact-check: Claim that 44% of Pfizer Covid-19 vaccine trial pregnancies ended in miscarriage is wrong - Full Fact
Verdict: this figure is based on a miscalculation. during the pfizer trials, there were much lower rates of miscarriage among those who received the vaccine and those who received the placebo. neither rate was unusually high.
Organisation: Full Fact
Author: Grace Rahman
Date published: 2022-09-06T00:00:00