Emily Blunt debuted her slender post-baby body (and super toned legs!) on Tuesday, March 18, just one month after giving birth to her first child, daughter Hazel. Credit: NATIONAL PHOTO GROUP

Blunt sans bump! Emily Blunt was photographed with husband John Krasinski on Tuesday, March 18, debuting her slender post-baby body for the first time in public since giving birth to daughter Hazel last month. And it looks like those months of working out during her pregnancy have certainly paid off! See more pics of Emily Blunt here.

The first-time mom, 31, looked pretty and petite in dark skinny jeans, while showing off her lean and toned legs. Up top, she wore a loose-fitting blue-and-white oxford button-down tidily rolled up at the sleeves. Wearing minimal makeup, the Five-Year Engagement star paired her outfit with aviators and left her blonde locks parted down the center, as she clutched her husband's hand.

Krasinski, wearing a nearly identical outfit to his wife, lead the way down the street while talking on the phone.

As previously reported, the couple welcomed their first child, Hazel, on Feb. 16, exactly one week before Blunt's 31st birthday. Proud papa Krasinksi shared the happy news with fans and tweeted, "Emily and I are so incredibly happy to welcome our daughter Hazel into the world today! Happy bday!"

During her pregnancy -- which was exclusively revealed by Us Weekly back in September -- Blunt continued filming the big-screen musical adaptation of Into the Woods, slated to be released on Christmas Day this year. "It's been difficult, with her traveling and them having to be apart," a source told Us of Blunt and the Office alum during her pregnancy. "He's going to make a great father," another insider told Us.

While she gets to enjoy time with her newborn baby and hubby at home, the new mum will be gearing up in several months to promote her upcoming sci-fi thriller Edge of Tomorrow, costarring Tom Cruise and Bill Paxton. The film hits theaters in June.