Seventy-nine percent of pregnancies in an early COVID-19 vaccine study resulted in loss
the verdict
REFUTED
the evidence says no
confidence 7/100
Extensive clinical data and large-scale registry studies have consistently shown that COVID-19 vaccination in early pregnancy does not increase the risk of miscarriage or pregnancy loss.
Evidence against · 3
<scp>mRNA COVID</scp>‐19 vaccination early in pregnancy and the risk of spontaneous abortion in an international pregnancy registry
2023 · cited by 11
This international registry study of early pregnancy found an estimated cumulative risk of spontaneous abortion of 13.4%, which aligns with expected baseline population rates and shows no evidence of elevated loss following mRNA vaccination.
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More against · 2
Coronavirus Disease 2019 (COVID-19) Vaccination and Spontaneous Abortion.
2025 · cited by 3
This case-control study found no association between COVID-19 vaccination in early pregnancy and spontaneous abortion.
The Effectiveness and Influence of COVID-19 Vaccination on Perinatal Individuals and Their Newborns: An Updated Meta-Analysis.
2025 · cited by 0
This extensive meta-analysis synthesizing evidence from numerous studies demonstrates that COVID-19 vaccination during pregnancy safely reduces adverse neonatal and maternal outcomes rather than causing pregnancy loss.