Pregnant Brooklyn Decker went on a massive shopping spree on Tuesday with her husband Andy Roddick on May 26 -- see more cute new photos of the couple here. Credit: Courtesy of Brooklyn Decker/Instagram

Prepping for parenthood? Andy Roddick and his wife Brooklyn Decker, who's currently pregnant and expecting the couple's first child, went on a "massive" shopping spree on Tuesday, May 26.

"HUGE thanks to @retailmenot and @samsclub for gifting @ARFoundation with a massive shopping spree," the actress, 28, wrote on Instagram, alongside a cute photo with the former tennis pro. Together, the couple make shocked expressions inside the wholesale club while holding up a ridiculously long paper receipt.

Their shopping excursion on Tuesday, however, wasn't for personal reasons. Decker shared that their outing "to stock up our summer and after school learning programs!!" would help benefit the Andy Roddick Foundation, a nonprofit dedicated to closing the educational achievement gap for lower income students.

Roddick, 32, also posted several snaps from his morning shopping excursion, including one of his wife crossing her arms with an intimidating look and showing off her burgeoning baby bump.

The couple, married since April 2009, announced via Instagram in early May that they are expecting their first child together. "So this happened..." Decker wrote, alongside a photo in which she clutched her tiny bump. "#the3ofus."

"They couldn’t be any happier," a source told Us at the time. "They wanted to keep it private until they were ready but they were looking to start a family and are beyond thrilled."

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