Celebrity Celebrity Couples Michael Phelps and His Fiancée Are Expecting a Baby By Alexis Bennett Alexis Bennett Alexis Bennett is a New York-based writer who covers all things fashion, shopping, and beauty. She was previously the Ecommerce editor at InStyle. InStyle's editorial guidelines Updated on November 18, 2015 @ 02:15PM Pin Share Tweet Email Photo: Instagram/m_phelps00 Michael Phelps is getting ready for daddy patrol: The most decorated Olympian of all time and his fiancée, Nicole Johnson, are expecting a baby! The 30-year-old swimmer revealed that his future wife is pregnant by posting an Instagram photo of the couple in matching aviator sunglasses in front of a pool (above). The future parents look overjoyed as Phelps poses with his arms around Johnson, who holds up an adorable pair of miniature swim briefs, emblazoned with Dad's initials. "We found out 8 weeks ago we were expecting," Phelps wrote in the caption. "Today we're over 12 weeks and it looks like we're having a boy!!! #babymp #mp #lifeabouttochange #mpswim." Michael Phelps Goes Swimming for Louis Vuitton We imagine Phelps will be the greatest swim coach imaginable when it comes time for the little one to take to the water. Congrats to the growing family!