I'm just wondering has anyone ever had 2 periods or a long period while on the Depo Provera Shot? I've been on my period for 2 weeks now and even though it's not heavy and it's on the light side I'm still worried. I will get painful cramps that come and go here and there. Passing small clots at least twice now. Is this normal with the shot after being on it for a year 3 months now? Just when I think its over it starts up again. Could this be a sign that the shot isn't working anymore or could it be a sign my endometriosis is back or I have developed uterine fibroids?