How long does it usually take for the depo to get out of your system? Were ttc #4 and i had 3injections of depo was due for my next one january of this year but decided to stop all bc..i started getting my normal cycle back in april/may and we still havent gotten pregnant..before the depo i was on paragard for a year and mirena for 5yrs..does the depo take a long time to get out of system? Even with only 3injections??