I took the depo shot once in January only one dose, I had a non stop period for 2 months and 1 week before I went to see my gyno, she gave me the nuvaring to stop my bleeding I took it out after I stopped bleeding I just came on my period and I think my depo wore off bc its time for another shot if I get the depo shot and I bleed again can I use a nuvaring to stop it again and still be on the depo shot, will it be safe?