The New York Daily News said the celebrity mom and her also-famous husband, rapper Jay-Z, took their first child home early Tuesday. The baby was born Saturday.
The couple released a statement describing her birth as "emotional and extremely peaceful," People.com said.
"We are in heaven," the statement said. "It was the best experience of both of our lives. ... We are thankful to everyone for all your prayers, well wishes, love and support."
Beyonce flaunts bikini body, Blue Ivy in vacation pics
Kate Middleton recycles dress at movie premiere