Is it safe to receive the COVID-19 vaccine if I am pregnant or planning to become pregnant?

The vaccine was not studied in pregnant women. There is no scientific data about the safety or effectiveness of this vaccine in pregnant women. Thirteen study participants became pregnant and are being followed. Pregnancy does not prevent you from choosing to get the vaccine. If you are pregnant, we recommend that you discuss the risks and benefits of getting the vaccine with your healthcare provider prior to receiving the vaccination.

The Society of Maternal Fetal Medicine has outlined some considerations here: https://s3.amazonaws.com/cdn.smfm.org/media/2641/Provider_Considerations_for_Engaging_in_COVID_Vaccination_Considerations_12-15-20_(final).pdf
And the American College of Obstetrics and Gynecology statement is here:
https://www.acog.org/clinical/clinical-guidance/practice-advisory/articles/2020/12/vaccinating-pregnant-and-lactating-patients-against-covid-19