"Jared and I are so excited that Arabella will become a big sister this fall. Thanks for all your good wishes! xo Ivanka," Ivanka tweeted at the time.
Ivanka and Kushner, the owner of the New York Observer newspaper, began dating in 2007 and wed in 2009.
Donald Trump Jr. and his wife Vanessa are the parents of two children -- Kai Madison, a 4-year-old daughter, and Donald Trump III, a 2-year-old son.
(Photo credit NBC)
DISCUSS AND COMMENT ON THIS STORY Reality TV World now offers Facebook Comments on our stories. To post a comment, log into Facebook and then 'Add' your comment. To report spam or abuse, click the 'X' in the upper right corner of the comment box. Get more Reality TV World! Follow us on Twitter, like us on Facebook or add our RSS feed.