I got my first depo shot march2009 and was due for the next in June but didn't go through with it and had a regular period since... I started again in may 2011 and only had two shots in which I took the second one in August 2011 I had my period for there Weeks straight in December 2011 didn't receive a period in January or February of 2012 started spotting in March and had a regular period in April... didn't receive a period in may June or July of this year... yes I am sexually active and been told I'm not pregnant... should I be concern?? What is going on with my body?? I've gained weight, have sore breast, abdominal and back pain, and been told nothing is wrong with me