The 27-year-old supermodel has made the announcement on her Instagram page, reported Female First.
The Victoria's Secret beauty uploaded a black-and-white photograph of her burgeoning baby bump alongside the subtle caption, "My Not so little boy (sic)."
The couple's pregnancy news was confirmed back in March when a friend of the pair said they were "so excited" about their impending arrival and were planning to spend the summer in New York getting ready for their new addition.
Candice and her beau, Hermann Nicoli, got together when she was just 17 years old after they met in Paris and, following nine years of dating, finally got engaged last year.