She and her Mumford & Sons husband are already parents to a 20-month old daughter, Evelyn Grace.
And rumour has been abound lately that Oscar-nominee Carey Mulligan is expecting baby No.2.
Now, while dining at Sexy Fish in London on Friday, the 32-year-old very much seemed to confirm that her family is expanding.
For the occasion, she wore a loose black silk top and flattering black trousers which she teamed with black slippers and a black clutch.
Marcus Mumford, 30, and Carey have been married for five years and welcomed their daughter in October 2015.
They’re a low-key couple, and last time only revealed that they had welcomed a little girl after Ms Mulligan had given birth.
She was back at work quickly, admitting to E! News that the first couple of weeks were “pretty stressful”.
“Doing Press and doing it with a tiny baby, timing has been very important and babies do what they want, which is a challenge,” she added.