Should you get a coronavirus vaccine if you're pregnant? Experts say medical trials need to change. By Haley Ott Pregnant women seek guidance on COVID vaccine London — Ann Mead, who is in her second trimester of pregnancy, isn't sure if she's going to get the COVID-19 vaccine before she has delivered her baby. The teacher is one of many pregnant frontline workers who are being offered inoculations, but are uncomfortable with the lack of relevant safety trial data for pregnant people. "I don't know that I feel like being a guinea pig for it, because it's not just my body right now," Meade said.