I was on depo from March to October. Depo lasts, supposedly, 3 months in your body. I had received the first in March and the second in June and I didn't get any after that. I didn't have my period at all during March until the very end of September/beginning of October.. which is normally when I would get periods. I'm still recovering from the depo. My periods out of whack and my horomones are just everywhere. But the main point is; I just want to know if it made me infertile. I didn't have a period for about 8 months & it's just terrifying that the doctor screwed me over.