CNN  — 

A pregnant woman was found dead in Mississippi on Monday, less than a week after she disappeared, authorities said.

Makayla Winston, 21, was last seen on Thursday leaving her home in Goodman, north of Jackson, Holmes County Sheriff Willie March said.

Holmes County investigators found Winston’s body off Franklin Road, near Highway 17, which is located south of Lexington, March told CNN.

Winston’s body will be taken to the state crime lab in Jackson to determine the cause of death, according to March.

Winston’s mother, Yvetty Brown, said she last saw her in Goodman on Thursday night, according to CNN affiliate WLBT. Winston left in her car and was “heading to show the sonogram to the baby’s father,” Brown told the station.

Winston had been due to give birth on July 4, according to WLBT.