I started my period a few days ago, and the third day I started itching really bad. At first I didn't think twice about it. I thought it was just because I was dry or something. Today is my fifth day and the blood is really thin and there's a lot of it. It's also the color of a Blood Orange, which isn't normal for me. My latest conclusions are a yeast infection or an ST I. I don't want to go to the extremes yet and I really can't afford the doctor right now. Do you have any ideas of what it might be?