evidence: Using data from research in the New England Journal of Medicine (NEJM), an article in Science, Public Health Policy, and the Law (SPHPL) claimed that over 80% of pregnant women vaccinated against Covid-19 experienced spontaneous abortions, also known as miscarriages. [...] The original NEJM research, first published in June 2021, looked at data from the US Centers for Disease Control and Prevention’s (CDC) V-safe Pregnancy Registry, a voluntary scheme that monitors any effects of Covid-19 vaccinations on pregnancies. From among 827 "completed pregnancies" (meaning the outcome of the pregnancy was known) reported to the scheme, it found that a total of 104 ended in miscarriage, and said that this represented a miscariage rate of 12.6%, which made it similar to the normal rate in other pregnancies. [...] The NHS says: "There's no evidence the COVID-19 vaccines have any effect on your chances of becoming pregnant. There's no need to avoid getting pregnant after being vaccinated."