What the heck is going on?!?!?

Lola
So I came off depo over a year ago. After a failed round of progesterone pills my dr suggested I try bc pills to jump start my cycle. First cycle came and went without a hitch. 5 days on like my cycles before depo. Second cycle was a few days late (boy was I happy) then all of a sudden boom 17 days of bleeding and spotting before it went away. Now this cycle is 5 days late and I have no symptoms of AF. Anybody experienced this...what the heck is going on!?!?