Dr. Anthony Fauci on Wednesday said about 20,000 pregnant women have received the COVID-19 vaccine with no red flags.
The top infectious disease expert announced the update at a Wednesday White House briefing, adding both the CDC and the FDA are monitoring the situation.
Guidance for pregnant women receiving the coronavirus vaccine have varied as they did not participate in either Pfizer-BioNTech and Moderna vaccine trials.
But Fauci said Wednesday that COVID-19 vaccine clinical trials for pregnant women and children are underway, with more to come.
The Centers for Disease Control and Prevention suggests pregnant women discuss with their healthcare provider the decision to get vaccinated.
The World Health Organization, however, does not recommend pregnant women receive the COVID-19 vaccine unless they are at high risk of exposure.