Beyonce, who lost her first baby with husband Jay-Z in a miscarriage two years back, has now discussed the sad event herself in a new documentary. In ‘Life Is But A Dream,’ the 31-year-old singer said that she thought the pregnancy was going well thanks to a healthy check up, the Mirror reported. She said in the HBO documentary that during the pregnancy she felt the heartbeat of her baby, which was the most beautiful music that she had ever heard in her life. The singer asserted that she had already started planning motherhood and had been dreaming about what it would be like. She said that she picked out names and envisioned what her child would look like. She added that she was feeling very maternal. But when she went for her next medical appointment, it was very bad news as the doctors were unable to find any heartbeat. Following the miscarriage, she turned to music to express her feelings. She added that she went into the studio and wrote the saddest song that she had ever written in her life, which was the best form of therapy for her, as the miscarriage was the saddest thing that she had ever been through.