FORT LAUDERDALE, Fla. -

A woman accused in the death of her son won't be released from jail to have another baby.

Brittney Sierra appeared in court Thursday, where her attorney said he wasn't able to find a place for her to give birth. She is in solitary confinement at the Broward County Jail.

Sierra will be taken to the hospital when she's ready to deliver the baby, who will then be taken into custody by the Department of Children and Families.

Sierra and Calvin Melvin Jr. are charged in their son Dontrell's death. The boy was last seen when the boy was six months old. The Hallandale Beach Police Department reports the medical examiner ruled the boy died from "violence of undetermined means."

A Broward Sheriff's Office deputy discovered the boy was missing while investigating an unrelated child neglect case on Jan. 9.

Police say Melvin and Sierra blamed each other for the child's disappearance, but both told detectives where to find the child. Remains were found buried in the back yard of a home the couple rented in Hallandale Beach.

According to the Hallandale Beach Police Department, a University of North Texas DNA analysis report found "genetic data are approximately 31.2 trillion times more likely to be observed under the scenario that the unidentified remains originated from a biological child of Brittney J. Sierra and Calvin Melvin Jr. as opposed to the unidentified remains originating from an unrelated individual from any of the three major U.S. population groups."

The remains police found had blunt trauma injuries, according to Hallandale Beach police reports. But the reports indicate the injuries were caused by police officers during the recovery process.