I Have Been On Depo Provera Since October Of 2015

I have been on depo provera since October of 2015 and started bleeding December of 2015. The bleeding has been everyday, some days less amounts, some days more, but there's never been a day where I haven't experienced it. The past couple days there has hardly been any blood, almost like a light spotting (if that) but instead what it looks like cervical mucus. Is this my body finally adjusting to the shot; is there an estimate of when the ongoing bleeding will stop permanently?