She confirmed her pregnancy via an Instagram post near the end of February.
And Kate Mara celebrated the upcoming arrival on Saturday with a baby shower at her home in Los Angeles.
The 36-year-old actress was joined by friends and family, including her husband Jamie Bell, her sister Rooney Mara, and Joaquin Phoenix.
Glowing: Kate Mara celebrated the upcoming arrival on Saturday with a baby shower at her home in Los Angeles
Kate glowed in a ruffled white dress that fell to just past her ankles as she attended to this and that ahead of the party.
Her choice in footwear was comfortable yet fashionable as she donned grey platform espadrilles.
She pulled her iconic red tresses into an elegant bun and wrapped a pink ribbon around them.
All smiles: The 36-year-old actress was joined by friends and family, including her husband Jamie Bell, her sister Rooney Mara, and Joaquin Phoenix
Fixing up: Kate glowed in a ruffled white dress that fell to just past her ankles as she attended to this and that ahead of the party
Radiant: She pulled her iconic red tresses into an elegant bun and wrapped a pink ribbon around them
Jamie mixed the chic with casual as he sported a button-down denim shirt on top of black jeans.
He left a bit of scruff across his jawline and short blond locks looked elegantly disheveled.
Donning a pair of straightforward yet stylish black sneakers, the 33-year-old Billy Elliot actor made sure to help out with the flower arrangements as they arrived.
Casual chic: Jamie mixed the chic with casual as he sported a button-down denim shirt on top of black jeans
Helping hand: Donning a pair of straightforward yet stylish black sneakers, the 33-year-old Billy Elliot actor made sure to help out with the flower arrangements as they arrived
Kate's sister arrived in a
