She's a glowing new mama!

Ivanka Trump and husband Jared Kushner welcomed son Joseph on Monday, and the entrepreneur shared a photo of herself cradling the newborn on her Tumblr account shortly after the birth.

"With love we welcome our son, Joseph Frederick Kushner," she captioned the snapshot.

So how did the couple decide on a name?

    "Jared's grandfather, Joseph, was a rock. His indomitable spirit, his sense of family, and his work ethic are the values we hope to hand down to our son. My grandfather, Frederick, was a builder not just of tens of thousands of homes throughout this city, but of a tight-knit family that honors to this day the traditions he established. Both men set the standards that have been passed down though the generations and which we hope to impart upon Joseph and Arabella," the mother-of-two explained.