Pregnant New York mom Kim Vaillancourt is delaying brain cancer treatment to save the unborn son she credits with saving her first.

Vaillancourt, 36, was diagnosed with glioblastoma, an aggressive form of brain cancer, after going to the hospital for headaches and nausea in December. She said she wouldn’t have gone to the hospital if she hadn’t been pregnant and concerned for her unborn baby, The Associated Press reported.

"I would have just thought I had a headache and the flu and I would have laid in bed," said Vaillancourt, who has five children ages 6 to 12, including three foster children she and her husband, Phil, adopted just days before her diagnosis.

Two tumors were removed via surgery, however she cannot undergo radiation and chemotherapy while pregnant.

Doctors have been keeping a close watch on Vaillancourt with MRIs every two weeks to check for new cancer growth. She is set to deliver a son the couple has named Wyatt Eli on April 25, and treatment is scheduled to begin about two weeks after his birth.

"We're praying a lot and trusting God through these next few weeks to keep these scans clean," Phil Vaillancourt said.

Life expectancy for those with Kim Vaillancourt’s diagnosis of grade 4 glioblastoma is roughly one year or six to eight months without treatment, 

Phil Vaillancourt, a maintenance worker at the wastewater treatment plant in Tonawanda, New York, is bracing to be a single father, while praying for a miracle.

"I want to see my kids get married. I want to see them graduate. I want to see them go to college. The big stuff," Kim told the station.

Those kids include Ryan, 12, and Hailey, 11, along with three sisters they have been fostering for three years: Kamila, 10, Josie, 7, and Chalie, 6.

The family adopted the foster children two days before Christmas. Two days after Christmas, Kim Vaillancourt received her devastating diagnosis. She was 20 weeks into her surprise pregnancy.
"We definitely feel that God put that baby in her for a reason; pretty much to save her life," Phil said.

A GoFundMe page has been established to support the family. As of Wednesday morning, the site had raised about $146,000.