Depo problems

Cindy
I have been on and off depo for the past 3years ...my last depo shot was in July 2016  I got what I thought was my period in October 15 2016 and it didn't finish till November 17 2016 since then I have not had my AF... I've have many pregnancy symptoms (boobs feel full and hurt like crazy, cramping, mood swings, some nausea, etc) but no BFP yet... anyone have the same problem?