The 35-year-old Oscar victor stunningly showed off her big baby bump in Blakes My Willing Heart music video, which was premiered on March 20, reported AceShowbiz.
The black and white footage starts with Portman swimming underwater.
In a very sweet moment, Natalie holds her stomach as Amalia flutters and then kicks, while she floats in the water.
The video's director, up-and-coming filmmaker Anna Rose Holmer (The Fits), tweeted a link to the video, calling Portman "generous" for giving her time to a song about "love and wonder".
The 35-year-old actress and her husband Benjamin Millepied welcomed their daughter, Amalia, into the world on February 22. However, the news was shared only in March. That's because Natalie Portman is its star, and she radiates throughout-pregnant baby belly and all.
She was nominated for Best Actress in a Leading Role - which was taken home by Emma Stone for "La La Land" - for her performance in "Jackie". "I feel so lucky to be honoured among my fellow nominees and wish them the most handsome of weekends", she said.