Why can't i grow facial hair? I'm 18??

I'm 18, 5'11, and 126 pounds. Literally guys that i know who are even shorter than me have beards by now. Literally any other guy i know has a full face of facial hair and im still naked on the face. It kinda makes me feel bad. I have my mothers facial features, which makes me look extremely feminine, and I hate it. I know friends that shave, and their beards grow back in a week. All i have is peach fuzz above my upper lip and a few coils of hair on my chin. Barely even visible. You'd have to shine a flashlight on my face to see them. I'm just tired of being so underdeveloped than most guys. I really am. Is there some sort of medical reason for this? Like i know a thing of being a late bloomer, but it seems as if i'll NEVER bloom. I'm 18, I don't even feel like im near the ending stages of puberty. I never had a huge growth spurt, never developed bigger muscles, OR facial hair. My voice got deeper, but it's still average compared to how I feel it should be. This is really annoying. Anyone care to explain why my body is being this way?