Depo Injection.

So I was on the DEPO injection for about 4 years and decided to stop having it done almost a year ago. 
It took about 7 months to have a period and now I'm constantly on! 
I would have about 10 days on, 2 days off.
I went to the doctors and they suggested I go back in birth control, however I don't feel that's a good idea if I wish to conceive any time soon considering it's already taken me a year to get this far. 
Just wondering if there's anyone that can relate and may have any advice?