Prince Carl Philip of Sweden, Duke of Värmland, and his wife, née Sofia Hellqvist, are expecting their second child in September 2017.
Hereditary Prince Franz-Albrecht zu Oettingen-Oettingen und Oettingen-Spielberg and his wife, née Baroness Cleopatra Adelsheim von Ernest, are expecting their first child in August 2017.
Hugo Wilson and his wife, née Princess Maria Theresia von Thurn und Taxis, are expecting their second child in 2017.
Christopher O’Neill and his wife Princess Madeleine of Sweden, Duchess of Hälsingland and Gästrikland, are expecting their third child in March 2018.
Prince Ernst August of Hannover and his wife, née Ekaterina Malysheva, are expecting their first child in March 2018.
Prince William of Wales, Duke of Cambridge, and his wife, née Catherine Middleton, are expecting their third child in April 2018.
Alexander James Spearman and his wife, née Princess Amelia of Brazil, are expecting their second child in February 2018.
Maria Zurita y de Borbon (daughter of Infante Margarita of Spain, Duchess of Soria), is expecting her first child in 2018.
Prince Philip of Yugoslavia and his wife, née Danika Marinkovic, are expecting their first child in 2018.
Crown Prince al-Muhtadee Billah of Brunei and his wife, née Sarah binti Pengiran Salleh, are expecting their fourth child in late 2017 or early 2018.
Yaduveer Krishnadatta Chamaraja Wadiyar, titular Maharaja of and his wife Soubhagyavati Maharani Sri Trishika Kumari Ju Devi Ammanni Avaru are expecting their first child in late 2017.
Andrea Casiraghi (son of Princess Caroline of Hannover, Princess of Monaco) and his wife, née Tatiana Santo Domingo, are expecting their third child in 2018.