Natasha Bedingfield is set to wed her boyfriend Matthew Robinson.The 26-year-old revealed her businessman lover proposed while they were in New York together earlier this month - but she admits they have yet to set a date for the big day.She tells People.com, "It just happened. But I am so excited, and it happened in New York and I want to share it with the world."We haven't thought about a date. We're just celebrating. I'm the luckiest girl in the world."The pair has been dating since last year.