At a news conference Tuesday night in Palm Beach, Republican presidential candidate Donald Trump leaked an interesting update -- but it wasn't about his campaign.

The billionaire businessman noted that his daughter, Ivanka, could not be with him at the Super Tuesday event at his Mar-a-Lago estate because, he said, she could give birth "within the week."

Ivanka has been a near-constant presence on the campaign trail with her father, appearing alongside him as recently as last week.

The 34-year-old is pregnant with her third child. She showed off her baby bump in December when she posed for an issue of Town & Country magazine, where she said in an interview she wants to "disrupt the narrative around what it means to be a woman who works."

She and her husband, Jared Kushner, have two other children: 2-year-old Joseph and 4-year-old Arabella.

Throughout her pregnancy, Ivanka Trump has shared several images on Instagram documenting her pregnancy and her children's lives: