(entertainmentwise.com) - Nicole Kidman made an appearance in New York yesterday, proudly showing off her tiny baby bump.As part of her role as UN Goodwill Ambassador, the wife of country star Keith Urban attended a press conference promoting the 'Say No To Violence Against Women' campaign.Wearing a flowing blue dress, the actress's protruding tummy was only visible when she clutched her hands beneath her stomach, but otherwise was barely noticeable.However, despite lacking a baby bump, something clearly apparent was the lines and wrinkles on her usually smooth face. Kidman is believed to be in her third trimester of pregnancy and is due to give birth in the summer.