The child, Mae Elizabeth Waterman, is the couple's first.
"She was 7-pounds even at 20 inches," the 34-year-old PR executive told the site. "She and her mommy are home now and doing great!"
Schefft first appeared on the third season of The Bachelor, where she became engaged to Andrew Firestone. After the couple split up, Schefft became the reality series' third Bachelorette. Ultimately, Schefft rejected finalist Jerry Ferris' proposal because she felt they didn't have enough chemistry.
Schefft met Waterman on a blind date in 2008. The couple wed in May 2009.