Kelly Clarkson's second pregnancy is apparently taking a toll on her. The "Piece By Piece" singer explained on "CBS This Morning" on Wednesday she has experienced so much sickness, she has to turn to medical professionals to remain steady, Us Weekly reports. "I'm familiar with all-day sickness," the 33-year-old mother of one and step-mother to two said. "I have to get IVs and fluids because I get so dehydrated. It's really bad." Clarkson's first pregnancy with daughter River Rose was nearly as tumultuous, she said during an interview in 2013. The original "American Idol" champion revealed she vomited nearly "a dozen times a day" at the time. Last month, Clarkson announced via Instagram her second child with husband Brandon Blackstock, 38, will be a boy. "In other news, River's gonna have a little baby brother," she wrote. "We're so excited!"