Jennifer Scollin was under the impression she had caught a stomach bug with severe stomach pains and nausea.
However, turns out Scollin was pregnant, later claiming "she didn't know she was pregnant," according to the Connecticut Post.
She had been feeling well, telling the newspaper, "I had been menstruating every month until last month."
Scollin, a resident of Seymour, Conn., gave birth to her second child Monday in an ambulance. She said she knew something was wrong when she woke up in the morning with sharp stomach pains.
Scollin called her boyfriend, Matt Dillman, and told him he needed to come home from work. Her water broke just after Dillman returned and Scollin was taken to a local hospital.
"We didn't know at first it was a baby coming, but once we did, it happened fast," Scollin told the Connecticut Post. "Two pushes and he was out."
Scollin and her boyfriend already have a 4-year-old daughter, Keley, so Scollin has been through pregnancy before - but she said this time "not all the signs were there," according to the Connecticut Post.
The couple named their newborn Cole Michael Thomas Dillman. Both Jennifer and Cole are doing well and were discharged on Monday.