Crown Princess Victoria and her husband Prince Daniel are expecting their first child.
Swedish Royal Court spokeswoman Annika Sonnerberg said Victoria, 34, is expected to give birth sometime in March next year. She said "the entire royal family is overjoyed for the couple."
The court said no changes are expected to be made to the princess's schedule for 2011.
Victoria married her private gym instructor, Daniel Westling, 37, in a lavish Stockholm ceremony in June 2010.