Short hair cut...right face shape?

Hi....I need some advice on whether or not to get my hair cut. My hair is already short (short and choppy in back: I spike it up, bangs and two strands near the front of my face) I was thinking of getting a shorter pixie cut because I`m just sick of managing my hair. I`m just worried that I don`t have the right face shape. I have a roundish face...maybe a little heart shaped and a small forehead...I`m thinking of getting rid of my bangs or keeping them really short and choppy.....I dunno...what do you guys think? A little advice would be nice of ya dont mind. :) thanx