The Transformers actress, 26, quietly welcomed little Noah Shannon Green, her first child with husband Brian Austin Green, on 27 September.
The notoriously private couple only announced their new arrival a few weeks later – and joked that Reese Witherspoon giving birth to her third child on the same day as Megan did helped keep their secret!
While we've seen candid paparazzi shots of Megan out and about since Noah's birth, yesterday's (28 November) photocall for her new movie This Is 40 marked her return to work.
Megan looked typically stunning in a tailored green dress, showing off her incredible figure – reminder, she only gave birth two months ago!
This Is 40 is a spin-off from Katherine Heigl's pregnancy movie Knocked Up, which follows one of the couples introduced in that film.
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