Hi I got the depo shot at the end of april/beginning of may. 16 days ago I started spotting brown blood and it hasn t stopped yet. I m wondering if I should go to my local er and ask them to do an ultra sound because the cramping is horrific, worse than before getting the depo when I was having full periods that lasted 3 - 5 days. I ve always been fairly irregular and only got the shot because they said that it would ease my cramping, its made it much worse and now like I ve said I ve been spotting for 16 days solid...