The news was confirmed by his rep to Us Weekly.
Jordan, 50, and Prieto, 34, tied the knot seven months ago in lavish ceremony in Palm Beach, Florida, in front of more than 300 guests.
Robin Thicke, Usher, Tiger Woods, Patrick Ewing and Spike Lee were among the attendees.
The pair dated for over 5 years before marrying and this will be their first child.
Jordan has three children from his previous marriage to Juanita Venoy whom he divorced in 2006 after 17 years together.
They are parents to Jeffrey Michael, 24, and Marcus James, 22, and daughter Jasmine, 19.