"I told her it probably wasn't a good idea for her to be outside shoveling. She wanted to do it anyway," a family member said.

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She was found unresponsive in her home, according to a family member.

"I started doing CPR," he said. "That's when my neighbor came over and helped with CPR and tried to revive her, and then the ambulance came."

Family members said Gerloff, who was 8 months pregnant, had heart defects.

Police and emergency responders told the family Gerloff and her unborn daughter, Kayliana, had died.

A childhood friend has set up a GoFundMe page to help with funeral costs.