10/17/2009 at 10:00 AM EDT
Losing the baby weight is one thing – but keeping
it off in preparation for the annual Victoria’s Secret Fashion Show is another for model mom Alessandra Ambrosio.
"Last year, because I had a baby and I had to lose pounds, I did a lot of cardio,” Ambrosio, 28, told PEOPLE at Thursday's Los Premios MTV 2009 in Universal City, Calif. "This year is all about weights, squats and lunges."
Ambrosio, a Victoria’s Secret model, gave birth
to a baby girl, Anja Louise Ambrosio Mazur, in August 2008. Less than four months later, she hit the runway for Victoria's Secret, showing off a stellar post-baby body
But Ambrosio says it's not as easy getting underwear-ready this time around.
"After I gave birth, my diet was a very healthy diet, like no sugar, no bread," she says. "But now, I am just eating whatever."
The solution? "I’m working out to prepare for the show because it’s our biggest show of the year,” she says. "I’m trying to work out four days a week."
She may be leaving nothing to chance when it comes to hitting the catwalk, but that's not the case when the question of having more kids was raised.
Ambrosio says coyly with a laugh: "Maybe. I don’t know. Let's leave it to destiny."