HEIDI Klum insists she wasnt an overnight success - she had to work hard to get where she is today. The supermodel and Project Runway host says she didnt hit the big time overnight. After [winning a German modelling contest], I thought, 'This is my ticket. Things will happen. But they didnt, Klum tells Page Six Magazine. I could never book a job. I was walking around New York for three or four years. Klum - who is currently pregnant with her fourth child - recently revealed that she refuses to wear maternity clothes because they arent trendy enough. My stylist tries to find things that are not maternity clothes, so Ive been wearing a lot from The Row, by Mary-Kate and Ashley Olsen. I love their clothes, she said. Marc Jacobs too. SS