The `Milkshake` singer filed for legal separation from rapper Nas in April 2009 when she was seven months pregnant with their son Knight, now 22 months, but doesn`t wish she had done things differently because she can learn from the experience. She said: "I`m not a big regret person. I`ve been divorced, and I can still say I don`t regret it. "I`m a big believer that if a bad situation happens, it is a lesson that needs to be learned, just once." The 31-year-old star also admitted she feels her life is better than ever and she is "very content" with herself at the moment. She added in an interview with Attitude magazine: "My mum told us that when we hit our thirties we`d feel our most beautiful and sexy and smart, and I really do feel like that. "I don`t know if it`s because I expected it or if it`s really true. "I`m a mother and I do what I love for a living, and I have enough money to do what I want but not so much that it`s a stress. I think happiness is a momentary feeling but I`m very content. I feel really good."