WILLIAMSBURG, Va. -- Shelby Pressley was killed early Sunday morning driving home from Richmond to Williamsburg when her car flipped over an Interstate 64 guard rail, off a bridge and down a 60-foot embankment.

Pressley's mother said her daughter wanted to be home Sunday morning because she was still nursing her four-month-old son Jayce. Now some mothers in Williamsburg have come together in an attempt to fill the void left by Pressley's death.

The mothers are donating breast milk to the family so little Jayce can remain on a breast milk diet. Shelby's mom called the gesture proof that there are good people in this world.

Pressley, 22, was pronounced dead at the scene of the Sunday morning crash. Her boyfriend, 33-year-old Joshua T. Abney, miraculously survived. Abney is the Jayce's father. Pressley also leaves behind a two-year-old daughter.

"I told my granddaughter her mother went to heaven. I told her God needed her. But she doesn't understand it. She does not understand why she's not back. Why she's not here," Pressley's mother Lisa Matykowski said. "They are her whole heart. They are her whole world, the babies are. She loved them more than anything in the entire world."

The circumstances surrounding the fatal crash remain under investigation by Virginia State Police.

Pressley graduated from Bruton High School in 2011. She served as a middle school cheer coach and worked at Lumber Liquidators. Pressley's funeral will be held Thursday, November 5 at 11 a.m. at Nelson Funeral Home, located at 3785 Strawberry Plains Rd, in Williamsburg.

A GoFundMe was set-up to help Pressley's family pay funeral costs and provide money for her children.