So i have never had unprotected sex in my life. I am on the depo shot but something weird is happening to me. I have been experiencing craving and have brown periods and or spotting. Last month I had a period for 2 weeks. I am not really sure what this is from but it is awkward. Like I stated before I have never had unprotected sex in my life so I do not think that is an actual possiblity is it? So what can be causing me to have these craving and the brown blood?