Clarkson, who is eager to start a family with her new husband Brandon Blackstock, said the British singing star advised her not to get pregnant unless she was ready to take a career break and stay at home, reported Us magazine.
The 31-year-old star said that Adele, 25, told her at the Grammy Awards in Los Angeles in February, "Girl, don't have a baby 'cause everything else will go on the back burner. I'm living in babyland."
The 'Set Fire to the Rain' singer gave birth to her first son, Angelo, with her fiance Simon Konecki in October 2012, and has kept a relatively low profile since then.