Pregnant people who are vaccinated against the coronavirus are nearly twice as likely to get covid-19 as those who are not pregnant, according to a new study that offers the broadest evidence to date of the odds of infections among vaccinated patients with different medical circumstances.

The analysis, based on medical records of nearly 14 million U.S. patients since coronavirus immunization became available, found that pregnant people who are vaccinated have the greatest risk of developing covid among a dozen medical states, including being an organ transplant recipient and having cancer.
https://www.washingtonpost.com/health/2022/03/31/pregnancy-covid-risk/