Sienna Miller shares how she really feels about becoming a mother for the second time at 42 – after giving birth to a baby girl with boyfriend Oli Green, 27

Sienna Miller welcomed her second child earlier this year at the age of 42.

And the actress tells in this week’s issue Stellar Magazine that she couldn’t recommend late motherhood enough.

The American Sniper star welcomed a baby girl, whose name she has not revealed, with her boyfriend Oli Green in January.

“My own experience of motherhood 12 years later is completely different,” the British star told the publication.

“I’m a completely different person. People often say a lot about having children at 40 as a woman, but I can’t advocate it enough. I feel very lucky.”

Sienna went on to say that she found it easy to combine motherhood and her career.

“I just finished maternity leave. My baby is eight months old. It’s great because now that Hollywood is focused on the female experience, I can take my baby everywhere and they don’t have to film for me anymore,” she said.

“I’m still breastfeeding. I pump and send milk back to the hotel, and you just make it work,” Sienna continued.

Sienna Miller (pictured) welcomed her second child earlier this year at the age of 42. And the actress tells this week’s issue of Stellar Magazine that she can’t recommend late-term motherhood enough

“I’m equally fulfilled by both things. And I’m lucky to have a job where I can have my baby at work.”

Sienna, 42, and Oli, 27, were first linked in February 2022 and welcomed their daughter together eight months ago.

Speaking with Harper’s Bazaar Sienna said of Oli: ‘I didn’t expect to be taken seriously and then I fell in love very quickly. I didn’t think, “I’m going to get a younger boyfriend.” It was more, “F*ck! Why are you young? That’s so annoying.”‘

“There is a difference in the way that generation of men respects women. It is specific to him, he is very wise and well-adjusted, but I do believe it is that generation as well.

“They grew up on a slightly more level playing field. I see it with his girlfriends and also with the men.”

The American Sniper star welcomed a baby girl, whose name she has not revealed, with boyfriend Oli Green in January. Pictured at the Cannes Film Festival, alongside Oli and daughter Marlowe, 12, at the premiere of her film Horizon: An American Saga

In addition to the eight-month-old baby she shares with Oli, she also has a 12-year-old daughter Marlowe with her ex-partner Tom Sturridge.

Sienna said in the candid interview that the birth of her second child was a “healing, healing experience.”

The blonde beauty said: ‘I’m in heaven. It’s been a cathartic, healing experience, which sounds cheesy, but it’s grounded in a way that reflects the life I want to live.’

She explained that the 11-year age difference between her daughters “is actually very helpful because one is small and portable, while the other is becoming more and more independent.”

Of Marlowe, who walked the red carpet at Cannes with her mother earlier this year, Sienna said: ‘She’s so stylish and very critical.’

“She looks like a young Anna Wintour in her total disdain for some of the things I wear.”

“I’m a completely different person. People often say a lot about having children at 40 as a woman, but I can’t advocate it enough. I feel very lucky,” she said. Sienna showed off her baby bump at Vogue World in December, before giving birth to a baby girl a month later

Sienna is currently promoting her new film, Kevin Costner’s western epic Horizon: An American Saga.

Sienna is in her early forties and is embracing motherhood once again, with fans and commentators claiming the British actress has ‘never looked better’ despite the demands of her work and young family.

Brand and culture expert Nick Ede told MailOnline he predicts Sienna is on the verge of ‘stealing the crown and becoming the UK’s biggest Hollywood star’.

He said: ‘Sienna has been looking after herself and getting ready for the red carpet, knowing that this is going to be her big return to the big screen and all eyes will be on her. She has done everything right and she is dominating The Croisette – the beating heart of Cannes.

Sienna’s breakthrough roles came 20 years ago in Layer Cake and Alfie. Despite the critical acclaim for American Sniper, her acting career has not always reached the same heights.

Experts predict that 2024 will be the year she emerges from the shadows, after years of being overshadowed by boyfriends like Jude Law and Orlando Bloom and rumored lovers including Leonardo DiCaprio, Daniel Craig and Brad Pitt.

Read more in this week’s issue of Stellar Magazine