23-Year Old Delivers 10-pound Baby An Hour After Learning About Pregnancy

Katherine Kropas was 23, and she had no idea she was pregnant with a 10-pound baby until one hour before the delivery

On Tuesday, she got up with a severe back ache. "I felt like I was getting stabbed in my lower back," Kropas said, according to usatoday.com. "I have a high tolerance for pain, but this was like a 9" on a scale of 10."

Initially, doctors did not find anything wrong with her. Then they took an ultrasound.

"They took one look, and they rushed me off into labor," she said. "I found out that I was having a baby at 10:15. She was born at 11:06 p.m," according to abcnews.com.

Her boyfriend of two years, 40-year-old Dan Keefe informed her parents, who immediately rushed to the hospital for the delivery.

It was a bonny lass, Ellie, who weighed 10 pounds and 2 ounces. Initially, Ellie had thought that she had become fat, but felt that it was just "typical holiday weight gain".

"It's great, I'm very upbeat," she said, to nydaily.com. "Everyone has been very supportive."

Ellie's grandmother, Karen Kropas, said that it's been an oral story, but never thought that her daughter would be a protagonist. "You laugh and you say that's ridiculous," she said. "And then it happens to you, and you're like, 'This really does happen.'" It was like a rollercoaster, she said, but the mother and daughter are doing good.

South Shore Hospital in Massachusetts confirmed that it does happen once or twice a year. One out of 475 women never understood that they were pregnant until about 20 weeks of gestation. And about one out of 2,455 pregnant women were never even aware of it until they started the birth.