Chelsea Clinton Is Expecting Baby Number 3! Read Her Sweet Announcement

Chelsea Clinton is expecting her third child! Already mom to 4-year-old Charlotte and 2-year-old Aidan with husband Marc Mezvinsky, Chelsea shared the news on Twitter on Jan. 22, where she wrote that she and her family "cannot wait to meet our newest addition later this Summer." Although Chelsea is Bill and Hillary's only child, the 38-year-old is thrilled to be growing her family and making her mom and dad grandparents three times over. Plus, she can't wait to see how her two older kids transition, particularly Aidan, who will become a big brother for the first time. "Marc and I have loved watching Charlotte be such a wonderful big sister and we're excited to watch Aidan become a big brother!"

Congrats, Clinton family!