I've been on Depo for a few years, always getting my shots regularly, until this past one last month, I was about a week or two late. I had sex about a week after I got my shot, but for the past five days (about a week after I had sex) I am experiencing horrible cramping, back aches, bloating, constipation, gas, discharge (that looks like it does when ovulating), very light spotting for a day, and fatigue. All of which are symptoms of early conception/egg implantation, however, I understand that they are also symptoms of Depo. My concern is that I can't remember experiencing these symptoms so long after all of my other shots. Any thoughts as to whether or not this may be normal or a possible pregnancy?