The actress shares her joy and challenges of motherhood at 44
Category: Arts & Culture
Sienna Miller has officially become a mother of three, welcoming her third child on May 11, 2026. The news of her latest addition comes just days after the birth, which marks her second child with boyfriend Oli Green, 29. Miller, 44, expressed her happiness during an interview with E! News, sharing the joys and challenges of motherhood.
The couple, who have been romantically linked since February 2022, welcomed their first child together, a baby girl, in January 2024. With the arrival of this new baby, Miller is embracing her role as a mother with renewed energy, even if it means running on very little sleep. "I have a tiny baby next door. It feels like stringing sentences together is a bit challenging. I’m on very little sleep, but I’m madly in love with my baby," Miller shared, highlighting the deep affection she has for her newborn.
Miller first revealed her third pregnancy at The Fashion Awards 2025, where she wore a stunning see-through gown by designer Giambattista Valli that showcased her baby bump. This announcement was particularly meaningful as it marked her return to social media after an eight-year hiatus. The pregnancy announcement went viral, sparking discussions about women having children later in life.
Prior to the public reveal, Miller had kept her pregnancy under wraps, letting her body speak for itself during industry events. She appeared radiant at the 2025 Fashion Awards, where her outfit accentuated her growing belly and symbolized her confident embrace of motherhood at every stage of her career.
As Miller adjusts to life with her newborn, sources close to the couple describe Oli Green as a deeply supportive partner. Friends say he has been actively involved in helping Miller navigate the challenges that come with a new baby. The family is reportedly adjusting beautifully at home, creating a nurturing environment for their two daughters.
With a 15-year age gap between Miller and Green, many have been curious about their relationship dynamics. Miller has openly discussed how having children later in life has brought her a sense of maturity and perspective that she didn’t have when she welcomed her first child, Marlowe, with ex-boyfriend Tom Sturridge in July 2012. She has stated that motherhood feels easier emotionally and physically now than it did when she was a younger mother.
Miller’s relationship with Green began shortly after her split from Sturridge and has blossomed over the years. The couple shares a genuine affection and mutual support that has grown stronger with each milestone. Their first child together, a daughter born in January 2024, has been embraced by Miller’s 13-year-old daughter Marlowe, who seems to have adapted well to the changes in her family.
Oli Green, born in Los Angeles in 1997, has established himself as both an actor and a model. He studied at the Strasberg Theatre & Film Institute in New York and has appeared in television shows such as The Bold and the Beautiful and The Crown. In addition to acting, Green has worked as a model for major brands like Gap and Burberry, making a name for himself in the entertainment industry.
With her newborn now at home, Sienna Miller continues to juggle her professional commitments alongside motherhood. She is currently promoting her upcoming film, Tom Clancy’s Jack Ryan: Ghost War, demonstrating her dedication to her career. Friends and colleagues have praised her ability to balance these major life changes gracefully.
Looking ahead, the couple is reportedly considering taking some time off from demanding projects to fully enjoy the early years of parenthood. Miller has been forthright about her desire to protect her children’s privacy, indicating that details about the baby’s name and sex will likely remain private for the time being.
As Miller navigates this new chapter of her life, she continues to inspire many with her openness about motherhood and relationships. Her candid discussions about the joys and challenges of parenting resonate with fans who may be facing similar life choices.
The bottom line is that Sienna Miller is embracing her role as a mother of three with enthusiasm and love. As she balances her career and family life, it will be exciting to see how she continues to navigate her busy schedule and the joys of motherhood.