I am 16 years old and recently, last month, had got the birth control shot. Yes I am active with my boyfriend of a few years. Ever since that shot, I've had a hard lump underneath my skin close to my groin. It's not to sore, it used to be. But is slowly going away, now I have a bump that just occurred on the top right of my clitoris. But it's sore and red, it could be an ingrown hair, but what else could it be? & I've got checked for everything & I'm good, but what could this be? Should I get it checked out? Please help!!