evidence: The claim: Posts imply miscarriages and stillbirths drastically increased in 2021 due to COVID-19 vaccines [...] The implied claim here is wrong. The graph is based on data from the Vaccine Adverse Event Reporting System that is unverified and cannot determine if a vaccine caused a particular outcome. Scientists say a growing body of evidence shows COVID-19 vaccines do not cause an increased risk of miscarriage or stillbirths. [...] "The totality of evidence from these monitoring systems indicates that COVID-19 vaccination during pregnancy is not associated with an increased risk of miscarriage or stillbirth," said Dr. Tom Shimabukuro, director of the Centers for Disease Control and Prevention's Immunization Safety Office.