It all depends on you, i had stubble for some time and i liked the look of it but i dont think i thought of it as a beard. But then i look at Jason Stathams stubble, which is very dark and full i would consider that a beard. I guess it depends n how it looks, my stubble is nothing special so i just consider it the "growing stage" but its honestly up to you, i see many with the look, if you think its a beard then its a beard, period.