Aly Raisman is a retired American gymnast. She was the captain of the U.S. women's gymnastics team at the 2012 and 2016 Olympics and won six Olympic medals in all, including three gold medals.

Aly & AJ were writing “What It Feels Like” — a song about learning to admire “the beauty” of their physical changes — when Aly went into labor with her son Jack. On Friday, the sister ...