Off birth control. After this month will be 8 months.. Help!

Daisy
I was on the depo shot for a little over a year and stopped begaining of this year and got my last shot in February cause i was having bad side effects from it. Would i still get pregnant if i had unprotected sex? or could it still be in my system cause I'm still having bad side effects from being on it and it's been months since i have been off of it