Alright well I got my depo shot 3 months ago, I didnt have a period on it until my second month and now instead of getting the second shot I want to get Mirena instead so I had to wait a couple of weeks after I was due for my shot to get my period. I am 2 days late right now with slight cramping I need to know whats going on because I need to start my period so I can get on the Mirena. Someone help me please