my labia hurt

Nicole • Hi there, I don't have much to say but I love to talk and make new friends (:
Hey guys, 
Since yesterday my labia have been hurting. They hurt when I close my legs. They are also slightly swollen.
My period also started yesterday (a week early) but idk if that has got anything to do with it.
Does anyone know what this could be? I'd reeally appreciate some replies.
xx