Ivanka Trump and Husband Jared Kushner Welcome Baby No. 3!

This video is unavailable because we were unable to load a message from our sponsors.

If you are using ad-blocking software, please disable it and reload the page.

Ivanka Trump and her husband, Jared Kushner, have welcomed their third child.

On Sunday, the 34-year-old businesswoman introduced the world to her brand new baby boy, Theodore James.

WATCH: Ivanka Trump Debuts Baby Bump No. 3, Looks Amazing

"Baby Theodore. My heart is full," Trump captioned the heartwarming photo.

Earlier in the day, Trump made the announcement that she had given birth with a classy formal notification on Twitter.

WATCH: A Pregnant Ivanka Trump Stuns in New Photoshoot, Admits She Doesn't Always Agree With Dad Donald Trump

The little boy was born on Saturday, March 27, at 5:43 p.m. ET. He joins big sister Arabella, 4, and brother Joseph, 2.

Take a look back at when Trump first shared her tiny baby bump and pregnancy glow at the New York City ballet last October.