"I got my first (and last) Depo shot about two and a half months ago. I&#039;ve had two periods since, but they come a week late, and last about a week and a half. I have terrible cramps and heavy bleeding. My periods are far worse on it than before. When I got my first shot, my doctor only told me that I would spot for the first few months and then my periods would eventually stop, and that the risk of blood clots is low (my mother passed away at 38 from a blood clot, potentially from the use of birth control). I wasn&#039;t informed of the side effects, and my doctor didn&#039;t take a pregnancy test before she gave it to me, like they&#039;re supposed to. "