White discharge with reddish stuff?

Chayenne

So I was having a small pain on my right side near my hip and I went to the bathroom and when I wiped there was white discharge with what looked like maybe blood with it? There was no odor or smell but I am really concerned. I have never had this happen and my period isn't for another two weeks. Does anyone have any idea what this could be. My boyfriend and I are both clean from STDs. Please give me any ideas or helpful tips. I have a doctor's appointment for wednesday June 6 and will be asking about it but I am really freaked out.