Michael Phelps and Nicole Johnson are going to be parents again! On Sunday, the former Olympic swimmer and his wife announced that they are expecting their third child on Instagram. The couple is already parents to sons Boomer, 2, and Beckett, 13 months. "#3 on the way!" Michael captioned a photo of his two boys sitting in a car with balloons that spell out baby. "Can't wait to see the journey that this takes us on!!! #luckyman #boyorgirl? #P3" Nicole shared the same photo on her account writing, "Oops we did it again 🧒🏼👦🏻👶🏻 I get to be a mama x3!!" she wrote, adding the hashtag, "#herewegoagain." Congrats to the happy couple!