evidence: There is no evidence to back the claim that 80% of COVID-19-vaccinated women miscarried during their first trimester of pregnancy. [...] The federal Centers for Disease Control and Prevention says: "There is currently no evidence that COVID-19 vaccination causes any problems with pregnancy, including the development of the placenta. In addition, there is no evidence that female or male fertility problems are a side effect of any vaccine, including COVID-19 vaccines." [...] The CDC announced Aug. 11 that its analysis of data from the agency’s V-safe pregnancy registry did not find an increased risk of miscarriage among nearly 2,500 pregnant women who received an mRNA COVID-19 vaccine before 20 weeks of pregnancy. Miscarriage typically occurs in about 11% to 16% of pregnancies, and the study found miscarriage rates after receiving a COVID-19 vaccine were around 13%.