Hilary Duff shares intimate first family portrait with husband Mike and newborn baby boy Luca

Just the three of us! Hilary Duff shares intimate first family portrait with husband Mike and newborn baby boy Luca

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UPDATED:

03:56 GMT, 13 April 2012

She first tweeted a picture of her newborn baby Luca's feet.

The came a full-length snap of the wee bub on her social networking site.

Now Hilary Duff has shared a family portrait of herself, husband Mike Comrie and their few-week-old newborn with her fans.

Just the three of us: Hilary Duff has shared a family portrait of herself, husband Mike Comrie and their few-week-old newborn with her fans on her Twitter site

Just the three of us: Hilary Duff has shared a family portrait of herself, husband Mike Comrie and their few-week-old newborn with her fans on her Twitter site

Cuddling her pride and joy in her arms the 24-year-old Lizzie McGuire star beams in the black and white snap.

Both her and Mike dressed casually for the photograph, with the blonde actress and singer looking pretty in a knitted sweater.

Aside from using the new snap for her avatar, Hilary also told her followers that she has a new exciting project.

'Big News!' she tweeted. 'I’m working w/ Johnson’s Baby on its new charitable program, Johnson’s Baby Cares, http://on.fb.me/JohnsonsCares – I love being a mom :)'

Treating herself: Hilary was seen leaving a chicken shop yesterday to pick up some take-away food following her daily workout

Treating herself: Hilary was seen leaving a chicken shop yesterday to pick up some take-away food following her daily workout

Hilary has been plunging into her post-pregnancy baby weight loss regime with vigour.

And she rewarded herself after her daily workout yesterday.

The mother was seen picking up some take-away food at a chicken shop.

Make-up free, the actress wore Hunter Wellington boots over her leggings to protect herself from the wet footings following a rainy morning.

Busy day: The actress picked up the food following a vigorous workout

Busy day: The actress picked up the food following a vigorous workout

Busy day: The actress picked up the food following a vigorous workout

She kept herself warm with an oversized knitted cardigan slipped over her workout top.

The former Disney star carried a bag with several containers, possibly to take home to share with husband Mike Comrie.

Hilary had just finished a spin class at her local gym.

And it appears that she had certainly workout hard, tweeting her instructor after: @AlisiaLeibel holy sore body!!! @soulcycle kicked my booty!!!! Ouchieee.'

Hilary has also been attending Piloxing classes to help shift her baby weight.

The new workout, which is currently taking the celebrity world by storm, is described as a program that 'uniquely mixes Pilates and boxing into a fat torching and muscle sculpting workout guaranteed to whip you into shape.'

A bit tired The new mother appeared a little on the tired side during the outing

A bit tired The new mother appeared a little on the tired side during the outing

Since giving birth to her son Luca Cruz Comrie, Hilary has been determined to get into shape and spotted several times attending her classes.

One person the singer and actress has been relying on for advice about losing the pounds is fellow celebrity mother Jessica Alba.

The Fantastic Four favourite has tweeted about her own post pregnancy challenges in the past, and is already showing support.

She surprised Hilary by mailing her a range of products from The Honest Company range.

Keeping in shape: Since giving birth to her son Luca Cruz Comrie, Hilary has been determined to get into shape and spotted several times attending her classes

Keeping in shape: Since giving birth to her son Luca Cruz
Comrie, Hilary has been determined to get into shape and spotted several
times attending her classes

The grateful actress took to her twitter page to thank the Sin City'star for her generosity, writing: “Thanks @honest @jessicaalba for the box of goodies for Luca!

'The whole line looks amazing! Excited to try everything.'

The Honest Company was launched by Jessica and her husband Cash Warren with their business partner Chris Gavigan in January 2012.

Bundle and joy: Little Luca was born just last month

Bundle and joy: Little Luca was born just last month

It sells a range of toxin-free household goods, nappies and body care products.

Today Hilary also kept her followers updated with her baby Luca's latest actions.

'No better feeling that a peaceful baby sleeping on your chest…wonder what he's dreaming about #happymommy' she wrote this afternoon.