Objectives. To collect national data on pregnancy frequencies and outcomes among women in US state and federal prisons. Methods. From 2016 to 2017, we prospectively collected 12 months of pregnancy statistics from a geographically diverse sample of 22 state prison systems and the Federal Bureau of Prisons. Prisons reported numbers of pregnant women, births, miscarriages, abortions, and other outcomes. Results. Overall, 1396 pregnant women were admitted to prisons; 3.8% of newly admitted women and 0.6% of all women were pregnant in December 2016. There were 753 live births (92% of outcomes), 46 miscarriages (6%), 11 abortions (1%), 4 stillbirths (0.5%), 3 newborn deaths, and no maternal deaths. Six percent of live births were preterm and 30% were cesarean deliveries. Distributions of outcomes varied by state. Conclusions. Our study showed that the majority of prison pregnancies ended in live births or miscarriages. Our findings can enable policymakers, researchers, and public health practitioners to optimize health outcomes for incarcerated pregnant women and their newborns, whose health has broad sociopolitical implications.

We describe how mass incarceration directly undermines the core values of reproductive justice and how this affects incarcerated and nonincarcerated women. Mass incarceration, by its very nature, compromises and undermines bodily autonomy and the capacity for incarcerated people to make decisions about their reproductive well-being and bodies; this is done through institutionalized racism and is disproportionately done to the bodies of women of color. This violates the most basic tenets of reproductive justice—the right to have a child, not to have a child, and to parent the children you have with dignity and in safety. By undermining motherhood and safe pregnancy care, denying access to abortion and contraception, and preventing people from parenting their children at all and by doing so in overpoliced, unsafe environments, mass incarceration has become a driver of forms of reproductive oppression for people in prison and jails and in the community.

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