Princess Madeleine and Christopher O'Neill are expecting their first child in March 2014.
Official Announcement
The Princess Couple is expecting a child
Princess Madeleine and Mr. Christopher O'Neill are delighted to announce that The Princess is expecting their first child.
The birth is expected to take place in beginning of March of 2014.
No changes to the schedule of The Princess's engagements and work for Childhood are planned during the fall of 2013.(source)