Rabbi Laura Abrasley with Temple Shalom of Newton, a reform congregation, said Jewish teachings clearly state that the fetus is part of the mother’s body until birth.
“And really going back from the Torah, to the Talmud, to the time of Jewish law, in my mind, is that if the mother's life is in danger, her life takes precedence over the fetus,” Abrasley said. “I think 80 to 90% of the Jewish community really kind of understands that the right to reproductive care, in particular, including the right to abortion, is part of Jewish values and Jewish tradition.”
A Pew Research Center poll from 2014 found that 83% of American Jews believe that abortion should be legal in all or most cases.
Jeremy Burton, executive director of the Jewish Community Relations Council of Greater Boston, representing some 40 local Jewish organizations, said Jews don't necessarily embrace the position of conservative Christians that life begins at conception.
https://www.wgbh.org/news/local-news/2022/05/05/massachusetts-jewish-leaders-dismayed-angered-over-likely-reversal-of-roe-v-wade