A 21-year-old woman in Oklahoma has been found guilty of first-degree manslaughter after suffering a miscarriage last year.

On Oct. 5, Brittney Poolaw was sentenced to four years in prison for her 2020 miscarriage, according to local ABC affiliate KSWO. An autopsy on the unborn child revealed it had died at 17 weeks gestation.

Prosecutors on the case blamed Poolaw's miscarriage on her drug use. However, some advocates for the mother, such as the National Advocates for Pregnant Women, have argued that her conviction is not in line with the law.