Amanda Seyfried is expecting her first baby with Thomas Sadoski

By Gemma Strong

Congratulations are in order for Amanda Seyfried! On Tuesday (Nov. 29), the actress revealed that she is expecting her first child, when the 30-year-old stepped out for a Givenchy launch wearing a sheer black dress that showed off her blossoming baby bump.

It is the first child for both Amanda and her actor fiancé, Thomas Sadoski, who got engaged in September after a whirlwind six month romance. A source told Us Weekly at the time: "Tommy and Amanda recently got engaged and shared the happy news with family and close friends."

TAP TO VIEW GALLERYAmanda Seyfried and fiancé Thomas Sadoski are expecting their first baby together

The couple first met while working together on the off-Broadway show The Way We Get By in 2015. After reuniting on the US drama movie The Last Word, the couple went public with their romance in March.

It will be the first marriage for Amanda, and the second for 40-year-old Thomas, who was married for eight years until the summer of 2015.

Amanda has previously spoken of her desire to have children. In an interview with Marie Claire UK in August last year, the star joked that she needed to "get on it".

"I feel like my eggs are dying off. I need to get on it… I want a child. Badly. I want to be a mother, badly," she admitted. "That's what I feel. I've been feeling it for like, two years. I'm not ready but nobody's ready. It changes everything… so how can you ever be ready for that?!"

The couple got engaged in September after a whirlwind six month romance

Amanda — who has previously dated stars including Dominic Cooper and Josh Hartnett – has also opened up about her wedding day plans.

"I got married so many times in my life — on screen. I don't want a white dress!" she revealed. "I've worn so many of them. The fact is, that kind of stuff is less about the ceremony and more about the commitment. That's where it’s at, right? For me. But it's different for everybody."

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