<p><br /> Beyonce Knowles' mother has denied rumours that her daughter is expecting a baby.<br /> </p><p><br /> It follows reports in Us Weekly magazine claiming the Destiny's Child singer had fallen pregnant unexpectedly as she prepared for her world tour.<br /> </p><p><br /> But speaking on the Ellen DeGeneres chat show Tina Knowles said: "No, no. It's not true. Not right now."<br /> </p><p><br /> She added: "I'm looking forward to it. [But] With all the rumours, by now I should have about five or six grandchildren."<br /> </p><p><br /> This summer US super star Beyonce, who is married to hip hop supremo Jay-Z, admitted in an interview that she would like to have kids one day.<br /> </p><p><br /> She said: "My ambition is to continue to learn about the world and to eventually have a family. There are no dates, no times â" it will happen when I am ready."<br /> </p>