OKLAHOMA CITY - A judge is scheduled to sentence Wednesday the mother of three children killed in a recreational vehicle fire in January 2011.

In May, Stephanie Dunham pleaded no contest to child neglect and drug possession charges, and waived her right to a jury trial. Prosecutors say Dunham was high on meth when her three kids – Christopher, 4, Crystal, 3, and Kaylee, 1 – were trapped inside a burning RV in Del City.

Dunham could be sentenced to life in prison.

A jury convicted Dunham's husband, Christopher, in May. He was sentenced to 18 years in prison.

Stephanie Dunham gave birth to the couple's fourth child just a few months after her three children died. She's now pregnant with her fifth child.