Depo provera is notorious for staying in your system longer than any other birth control once it is stopped. It can remain in your system for 12-18 months. Some women luck out and can get pregnant quickly, other women take over a year.
No, u do not get pregnant while on Depo, esp if you have been on it for a year now.
When I stopped take the shot it took me 2 1/2 yrs before I got pregnant. It protects you 1-2yrs. untill you can get pregnant. good luck.