Woo-hoo! Look at who is hootin’ it up on her 17th birthday. Pregnant Jamie Lynn Spears and her baby daddy celebrated with a klassy dinner at the swanky Chez Ruby Tuesday. After dinner Casey continue to pamper and spoil his love by taking her on a whirlwind shopping spree at Liberty, Mississippi’s lux retailer, Walmart.

Jamie Lynn Spears celebrated her 17th birthday with fiancĂ© Casey Aldridge having dinner at Ruby Tuesday and shopping at Wal-Mart, a source says. “They both seemed really happy, both in really good moods,” the source tells PEOPLE of the couple’s outing near Aldridge’s home in Liberty, Miss. “Jamie Lynn had a big smile on her face.”

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