Were you born on the 29th of February? Having a Birthday every four years could be a could thing, on the negative side, one would miss all the presents and Birthday cake!
Here's a couple informative links on Leap Year.....
My uncle has a birthday on February 29 and he has a good alternative - whether to celebrate his birthday on February 28 or March 1. I hink you should accept it with some fun and enjoy the very fact that you were born.