evidence: Vaccinating against Covid does not increase the risk of miscarriage or birth defects, officials from the Centers for Disease Control and Prevention said. [...] Olson cited a CDC study on Covid vaccine-related miscarriages conducted from Dec. 14 through July 19. The report factored into its findings a 12.8% risk of miscarriage by the 20th week of gestation among 2,456 participants who received Pfizer's or Moderna's vaccines while pregnant, which is the normal risk of miscarriage after adjusting for the mom's age. [...] Just 45 babies in the group were born with birth defects, and Olson reported no uncommon types or clusters of birth defects to the panel. Covid vaccines aren't connected to stillbirths either, said Dr. Elyse Kharbanda, a researcher with the HealthPartners Institute who presented her findings before the committee.