Alessandra Ambrosio reveals she had only 3 months to lose her baby weight in 2008

Alessandra Ambrosio
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Alessandra Ambrosio reveals she had only 3 months to lose her baby weight in 2008
WEST HOLLYWOOD, CA - MARCH 20: Alessandra Ambrosio arrives at the The Daily Front Row 'Fashion Los Angeles Awards' 2016 at Sunset Tower Hotel on March 20, 2016 in West Hollywood, California. (Photo by Steve Granitz/WireImage)
PARIS, FRANCE - MARCH 11: Alessandra Ambrosio is wearing Balmain coat, Ale by Alessandra hat, Unravel project sweater, Hernes belt, Chloe bag, Gianvito Rossi boots and Redome denim seen in the streets of Paris on March 11, 2016 in Paris, France. (Photo by Timur Emek/GC Images)
PARIS, FRANCE - MARCH 08: Alessandra Ambrosio is wearing a Valentino dress, Saint Laurent coat, Gianvito Rossi shoes, Shay jewelry seen in the streets of Paris on March 8, 2016 in Paris, France. (Photo by Timur Emek/GC Images)
BEVERLY HILLS, CA - FEBRUARY 28: Model Alessandra Ambrosio arrives at the 2016 Vanity Fair Oscar Party Hosted By Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 28, 2016 in Beverly Hills, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - FEBRUARY 26: Model Alessandra Ambrosio attends NET-A-PORTER Celebrates Women Behind The Lens at Chateau Marmont on February 26, 2016 in Los Angeles, California. (Photo by Stefanie Keenan/WireImage)
LOS ANGELES, CA - FEBRUARY 15: Model Alessandra Ambrosio arrives at The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)
PUNTA DEL ESTE, URUGUAY - DECEMBER 19: In this handout image supplied by Formula E, Victoria's Secret model, Alessandra Ambrosio, takes a 'selfie' photo during the Julius Baer Punta del Este Formula E race at Playa Brava Beach street circuit on December 19, 2015 in Punta Del Este, Uruguay. (Photo by Jed Leicester/LAT/Formula E via Getty Images)
LOS ANGELES, CA - DECEMBER 10: Model Alessandra Ambrosio arrives at the premiere of Disney On Ice's 'Frozen' at Staples Center on December 10, 2015 in Los Angeles, California. (Photo by Amanda Edwards/WireImage)
LOS ANGELES, CA - DECEMBER 03: Alessandra Ambrosio arrives at tbe GQ Men Of The Year Party at Chateau Marmont on December 3, 2015 in Los Angeles, California. (Photo by Steve Granitz/WireImage)

Having children changed how Alessandra Ambrosio felt about modeling.

The Victoria's Secret supermodel opened up to Net-a-Porter magazine recently about doing a fashion show just three months after having her first child in 2008.

"Your body will never go back to exactly what it was before pregnancy, whatever people tell you. It can't," she told the publication. "But I think I have a better body now than before I had kids. It's partly because I work out, whereas before I didn't, but also to do with the shape – it just looks more formed now and I feel better about it than I did."

WATCH: Alessandra Ambrosio Poses Fully Nude for Maxim

"Not that it was easy getting back into shape post-pregnancy," the model and businesswoman, who turns 35 on Monday, explained. "After having Anja I only had three months to lose all the weight [before doing the 2008 Victoria's Secret show] and I was on this 1200-calorie-a-day meal-delivery service that I hated. I couldn't do that again."

Ambrosio has two children with partner Jamie Mazur -- 8-year-old Anja and 3-year-old Noah -- and during the interview she revealed that becoming a mother changed her perspective on posing in front of the camera.

"I used to be 100 percent comfortable on lingerie shoots – then I had a child, and it was more of a mental shift than anything else," she said. "Somehow it felt a bit weirder to be in lingerie once I was a mum."

Despite the feelings, Ambrosio hasn't stopped doing intimate shoots, such as her nude shoot with Maxim last year.

PHOTOS: Hollywood's Hottest Bikini Bods!

"Although I did that cover for Maxim last year [naked but for a strategically placed newspaper], you don't see anything," she said. "When my daughter saw it, she asked, 'Mummy, why do you have no clothes on?' And I said, 'Mummy actually has a G-string on – it's just so small you can't see it.'"

Ultimately, she determined that the key is to feel good about yourself, inside and out.

"If cosmetic help makes you feel better about yourself and gives you confidence, then great," she said. "None of us can ever be sure of what we're going to end up wanting to do in the future. But it's important to take care of our mind and spirit, too, not just the outside."

WATCH: Cristiano Ronaldo and Alessandra Ambrosio Pose Nearly Nude on Sizzingly Hot 'GQ' Cover

Alessandra Ambrosio Poses Completely Nude on the Cover of Maxim

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