Hilary Duff Sports a Bikini While Holding Baby Luca
06/27/2012 AT 09:00 PM EDT
Post-pregnancy yoga and Pilates workouts are working for the former Disney star, 24, who said in April that those exercises make her "feel more clear-headed and positive."
She is also folowing the Fresh Mommy program, a national gourmet meal delivery service created by Freshology, which brings her three meals plus snack and a dessert daily.
Flaunting her fit figure in a black, low-rise bikini, Duff is photographed in Mexico carrying 3-month-old son Luca Cruz, while adjusting her sunglasses and showing off some serious abs.
As a woman in the public eye, she acknowledges, "There is a little bit of pressure" to lose baby weight. "But most of it comes from me."