Help? l Discharge with a tinge of white and mucus.?

Okay I'm 14 and haven't started my period, earlier I was masturbating with my vibrator like around 11-12 am and now it's 2:06 am I was outside holding my dog all of a sudden I feel something come out of my I hurry up go to the bathroom to check and I have mucus and white stuff in my underwear. Whats this mean? Help? Please this is serious, I'm clueless.