Hannah and Ben Hinders hadn't seen their families in almost 10 months, so decided it would be the perfect opportunity to wait until the holiday season for the ultimate pregnancy announcement.
The first time parents even filmed the reactions from their shocked family and friends in a video posted to YouTube earlier this month.
'This is your first niece,' Hannah announced to one of her sisters in the video. 'We told you we were going to bring you something.'
Another friend was stunned that Hannah had recently posted pictures of herself in a bikini online without giving away her secret.