Sienna Miller and Tom Sturridge became parents over the weekend, a source confirms to Us Weekly. Details on the baby's gender, name and weight were not available. The British duo have been dating for over a year and debuted signs of their engagement in mid-February.

SIENNA MILLER'S ENGAGEMENT RING

After remaining mum about her pregnancy for several months, the actress, 30, finally opened up to British Vogue in April.

SIENNA'S SISTER SPILLS ABOUT BABY AND ENGAGEMENT!

"Even though I'm under strict instructions not to say anything as it would completely defeat the point of everything I've tried to achieve in the last eight years," the resolutely private actress expressed to the mag. "I'm feeling fine...It's all progressing nicely and it's very exciting."

SIENNA MILLER DEBUTS BABY BUMP

Despite the couple's silence about their new addition to their family, Miller and Sturridge, 26, made no hesitation in stepping out in public on several celebratory occasions.

SIENNA MILLER'S PREGNANCY STYLE

In May, the couple stole some time away in Portofino, Italy for a babymoon. A week later, they got decked out to celebrate Sturridge's BFF Robert Pattinson's 26th birthday at Gordon Ramsey's restaurant in London, England.