Sienna Miller has once again captivated the world, this time with a heartwarming surprise unveiled under the dazzling lights of London. The acclaimed actress and eternal fashion icon graced the red carpet at the 2025 Fashion Awards, turning what would have been a standard celebrity appearance into a headline-making moment. Dressed in a breathtaking ensemble that perfectly highlighted her silhouette, she confirmed what many fans had hoped for: she is expecting her third child.
This joyous news marks a new chapter in her life with partner Oli Green, continuing a period of personal happiness and professional success. For fans who have followed her journey from the early 2000s “it girl” era to her current status as a celebrated stage and screen actress, this announcement feels like a beautiful progression. As she stepped out onto the red carpet at the Royal Albert Hall, the glow surrounding Sienna Miller was undeniable, signaling not just a new addition to her family, but a celebration of life, love, and the confidence that comes with embracing every stage of womanhood.
Table of Contents
- The Big Reveal at the 2025 Fashion Awards
- A Growing Family: Baby Number Three
- Relationship with Oli Green
- Breaking Stigmas on Motherhood and Age
- A Look Back: From Tabloids to tranquility
- Style Evolution of a Fashion Icon
- Conclusion
- Frequently Asked Questions
The Big Reveal at the 2025 Fashion Awards
The Fashion Awards in London are always a night of glitz, glamour, and high-octane style, but the 2025 edition will be remembered for one specific moment: the debut of a baby bump. When Sienna Miller arrived at the Royal Albert Hall, the flashing bulbs of the paparazzi captured more than just a stunning outfit. Wearing a daring and ethereal see-through white dress layered over chic white shorts, she embraced a look that was both modern and romantic.
Her hair was styled in loose, cascading waves, and she accessorized with statement earrings that framed her face perfectly. However, the true accessory of the night was the visible baby bump she cradled with a smile. It was a statement of confidence and joy. By choosing such a high-profile event for the reveal, she controlled the narrative, allowing the world to see her happiness firsthand. This wasn’t a leaked rumor or a grainy paparazzi shot; it was a deliberate celebration of her changing body and the new life she is nurturing.
The choice of attire was classic Sienna. Known for popularizing the “boho-chic” trend in the mid-2000s, her style has evolved into a sophisticated, risk-taking elegance. This outfit balanced transparency and structure, perfectly showcasing her pregnancy while maintaining the high-fashion edge she is renowned for.
A Growing Family: Baby Number Three
This pregnancy news means the actress is preparing to welcome her third child. This will be Sienna Miller Baby No 3, adding another member to her blended and loving family. She is already a devoted mother to her daughter Marlowe, who is now 13 years old. Marlowe is her child from her previous relationship with actor Tom Sturridge.
In addition to Marlowe, she welcomed a daughter with her current partner, Oli Green, in late 2023. The arrival of this third child will make them a family of five. It represents a bustling, happy household and highlights her desire to expand her family, a topic she has been open about in recent years.
The transition from a mother of one to a mother of three in a relatively short span (considering the gap between Marlowe and her second child) speaks to her renewed zest for family life. Fans have watched her navigate motherhood with grace, often keeping her children out of the harsh glare of the spotlight while occasionally sharing glimpses of their close bond. For instance, her appearance with Marlowe at her sister Savannah Miller’s event earlier this year showed a sweet, lookalike bond between mother and teen daughter.
Relationship with Oli Green
At the center of this new chapter is her relationship with Oli Green. The couple has been together since 2022 and has quickly become a favorite on the red carpet circuit. Green, who is 28 years old, is an actor and model. Despite the age gap, their connection appears deep and supportive, evident in the way they interact at public events and the few glimpses they offer into their private lives.
This pregnancy marks their second child together. Their first daughter, born just a couple of years prior, solidified their partnership. Green has been seen by her side constantly, including at the recent Fashion Awards where he was photographed with his arm protectively around her.
Their relationship represents a stable and joyous era for the actress. After years of high-profile romances that often played out in the tabloids, finding a partner like Green seems to have brought a sense of calm and partnership that suits this phase of her life perfectly. They navigate the industry together, balancing their respective careers in acting and modeling with the demands of raising a young family.
Breaking Stigmas on Motherhood and Age
One of the most empowering aspects of this news is the conversation it sparks regarding age and motherhood. At 43, Sienna Miller is defying outdated societal timelines that often dictate when a woman “should” be done having children. Sienna Miller Pregnant at this stage in her life is a powerful narrative that resonates with many women.
In candid interviews, she has previously discussed the intense pressure women face regarding their biological clocks. In a 2022 interview with Elle UK, she spoke openly about the anxiety of turning 40 and the “cruel” noise of biology. She revealed that she had frozen her eggs to alleviate the “existential threat” of running out of time.
“Then I got to 40 and I froze some eggs. Having been really focused on the need to have another baby, I’m just like, if it happens, it happens,” she shared at the time.
By openly embracing this pregnancy in her 40s, she is helping to normalize older motherhood. She has even joked about it in Vogue, stating she wanted to be “in on the joke” regarding her age. However, the reality is that her journey offers hope and validation to many. It proves that family planning is a personal journey that doesn’t have to adhere to a strict schedule. Her transparency about egg freezing and the pressures of aging in the public eye makes her a relatable figure for modern women navigating similar paths.
A Look Back: From Tabloids to Tranquility
It is impossible to discuss her trajectory without acknowledging how far she has come. In the mid-2000s, she was one half of the golden couple jude law sienna miller. Their relationship was fuel for the British tabloids, dominating headlines and subjecting her to an intense level of scrutiny that few could withstand.
During that era, she was often defined by who she was dating rather than her talent. The paparazzi hounded her relentlessly, a period she has since described as traumatizing. However, she weathered that storm with resilience. Over the last decade, she has successfully shifted the narrative. She is no longer just a tabloid fixture; she is a respected actress with credits in films like American Sniper and The Burning Woman.
Her ability to move past the jude law sienna miller media frenzy and establish herself as a serious artist and a grounded mother is a testament to her strength. Today, when she makes headlines, it is for her professional achievements or happy milestones like this pregnancy, rather than scandal. This shift from chaos to tranquility is perhaps her greatest triumph.
Sienna Miller’s Style Evolution
While the baby news is the main event, one cannot ignore the fashion. Sienna Miller has been a style icon for two decades. She single-handedly defined the “boho-chic” era of the 2000s, with her coin belts, disc bags, and floppy hats becoming the uniform of a generation.
As she has matured, so has her style. The outfit at the 2025 Fashion Awards was a masterclass in maternity dressing. It wasn’t about hiding the bump; it was about framing it. The sheer fabric, the structured tailoring of the shorts underneath, and the confident stride all pointed to a woman who is comfortable in her skin.
Throughout her previous pregnancy with her second child, she also made waves with her maternity fashion, notably wearing a two-piece Schiaparelli ensemble that bared her bump at a Vogue World event. She challenges the traditional, conservative norms of maternity wear, opting instead for looks that are bold, sexy, and fashion-forward. She proves that pregnancy does not mean sacrificing personal style; in fact, it can be an opportunity to experiment with new silhouettes and celebrate the body’s changes.
What’s Next for Sienna Miller?
With a new baby on the way, 2026 is shaping up to be a busy year for the star. Balancing a newborn, a toddler, and a teenager is no small feat, even for a celebrity. It is likely she will take some time to enjoy the newborn bubble with Oli Green and her children.
However, her career shows no signs of slowing down. She continues to choose roles that challenge her and showcase her range. Whether she takes a brief maternity leave or jumps back into filming, her fanbase remains loyal.
This pregnancy serves as a reminder that life can be full of beautiful surprises. From her roots in London and New York to her current life as a mother of three (soon-to-be), she continues to evolve. She writes her own rules, whether in fashion, career, or family planning.
Conclusion
The announcement that Sienna Miller is expecting her third child is a heartwarming highlight of the year. It captures everything fans love about her: her style, her honesty, and her resilience. By stepping out on the red carpet at the Fashion Awards, glowing and confident, she shared her joy with the world on her own terms.
As she prepares to welcome this new life with Oli Green, she stands as a symbol of modern womanhood—embracing love, defying ageist expectations, and looking fabulous while doing it. We wish her a healthy pregnancy and all the happiness in this exciting new chapter.
Frequently Asked Questions
1. How many children does Sienna Miller have? She currently has two children and is pregnant with her third. She has a 13-year-old daughter named Marlowe and a toddler daughter born in late 2023.
2. Who is the father of Sienna Miller’s third baby? The father is her partner, Oli Green. This will be their second child together.
3. How old is Sienna Miller? She is currently 43 years old.
4. When did she reveal her third pregnancy? She revealed her pregnancy on December 1, 2025, at the Fashion Awards in London.
5. Is Sienna Miller married? She is in a long-term relationship with Oli Green, but they have not publicly announced a marriage.
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