Pippa Middleton was all smiles as she walked through London on Friday. The 34-year-old — who is expecting her first child [1] with husband James Matthews — gave a glimpse of her growing belly in gym gear. Pippa's exciting news broke just days before her older sister, Kate Middleton [2], gave birth to her third child; shortly after Prince Louis was born [3], Pippa was seen heading to Kensington Palace to visit her newest nephew [4]. While Pippa has yet to confirm her pregnancy news, she did have quite the glow when she attended Prince Harry and Meghan Markle's royal wedding [5] last weekend. Keep reading to see Pippa (and her bump)!