There is a one in 1,461 chance of being born on Leap Day, and a 5% chance of being born on the expected due date.
Both are true for Ivana, New Jersey's first Leap Day baby.
Born today at 12:21 a.m. at Cooperman Barnabas Medical Center in Livingston, Ivana weighed in at 7 pounds and 14 ounces.
She was the first of seven Leap Day babies born so far at the Medical Center, with another seven on the way.