Lauren Conrad and her husband William Tell are expanding their family! The former The Hills star, who also previously starred on Laguna Beach, announced she and William are expecting their second child together. RELATED LINK: 'DANCING WITH THE STARS' PROS AND THEIR SIGNIFICANT OTHERS: WHO'S DATING OR MARRIED TO WHOM!? (PHOTOS) The 33-year-old fashion designer revealed her pregnancy by sharing a photo of her baby bump Tuesday on Instagram. "It's been hard to keep this one to myself!" Lauren captioned the image. "Very excited to share that our family will be getting a little bigger this year." In the picture, Lauren was holding her baby bump and smiling in a white floral dress. She and her husband are already parents to a son, Liam James Tell, who was born on July 5, 2017. Lauren had her eye on William, 39, years ago when she was a fan of his band, Something Corporate. The former reality TV star and William, a graduate of the University of Southern California law school, began dating on Valentine's Day 2012 and later got engaged in October 2013. Lauren and William tied the knot in September 2014. Lauren then got pregnant for the first time a little over two years after marrying William in a wedding on the California coast. RELATED LINK: '90 DAY FIANCE' COUPLES NOW: WHO'S STILL TOGETHER? WHO HAS SPLIT?! (PHOTOS) In September 2018, Lauren told Us Weekly the couple would "probably" have more kids, but "not right now." She had also previously made it known she'd love to have two children.