Morales was initially hospitalized for high blood pressure. Complications ensued before Morales was taken into surgery, Todman said. She does not know what led to her passing.
    "I don't even care to know," Todman said. "It doesn't matter why. She's still gone."
    Hospital spokeswoman Toni Eberhardt declined comment Saturday, but she released a statement from the hospital: "Our heartfelt thoughts and condolences are with the family during this very difficult time."
    Morales, a former real estate agent who more recently worked for the University of Phoenix, and her husband, Carlos, who works in manufacturing, had been trying to conceive a baby for two years, Todman said. She said Morales tried everything from acupuncture to fertility treatments. Morales suffered a miscarriage before becoming pregnant last June.
    Todman, who has been best friends with Morales since childhood, said Morales was more nervous about being a new mother than raising four children at once. Because of her previous miscarriage, Morales was apprehensive about getting too excited about the babies' arrival. She mainly focused on doing things correctly throughout her pregnancy such as eating enough, Todman said.
    "Her focus of her pregnancy was to make sure she did everything to make sure they were healthy so she was able to bring them into this world — and she did," Todman said.
    On Friday, Todman started a GoFundMe fundraising website for Carlos Morales and the infants on Friday. The site had received more than $29,000 in donations as of Saturday afternoon.
    "I'm so grateful for the overwhelming support and the wonderful comments, and so are Carlos and Sandra, Erica's mother. They are so entirely grateful," Todman said.