I'm 16 and my period isn't due for another 10 days. A couple days ago I found yellow stuff with a little bit of blood in my underwear so I put a pad on and it was not like a normal period. There was hardly any of it and it was dark yellow with a tiny bit of blood. Then the next day I woke up and it was like normal so I put a pad on and again, hardly nothing except it was dark red and goopy, and now today it's dark red/brown and really goopy. And I am not sexually active, I'm a Virgin