While sitting on pillows at home, Ivanka and her kids each hold up numbers.
"Baby One!" shouts 4-year-old Arabella.
"Baby One!" echoes her lollipop-eating brother before Mom corrects him. "Baby Two!"
"Baby Three!" Ivanka says while holding the number three over her stomach.
"Are you happy?" she asks her daughter, who nods with some enthusiasm.
"Are you happy?" she asks little Joseph, who (at almost 2 years old) does not hold back for the camera. "No!" he says while shaking his head.
Ivanka shared some behind-the-scenes details on her website and reassured us that Joseph is, in fact, happy to have a little brother or sister on the way.
"Arabella and Joseph are both incredibly excited to have a new sibling on the way," Ivanka writes on her site. "Arabella is a ham and was totally camera-ready, but I had to resort to bribery to get Joseph to cooperate."
She even included an outtake video that any mother who's had to wrangle toddlers will understand.