Wait, I don't remember what I said in my post, and I'm too tired to check. haha.
but anyways, I did go get checked out. I don't know if my mom mentioned the itching to the doctor when she called, because its still there and I wasn't givin any medication. But I was tested for STDs and it came back negative. So no STDs. Its probably a yeast infection, atleast for me. It may be different for you. You should still go get checked out. As for not having your period yet, I would consider a pregnancy test.