If depo stops ovulation how is it possible i have a period? does bleeding=high risk preg n shot is not working? got 1st shot 3 weeks ago middle of bcp

Bleeding can happen: While most women will have no bleeding or maybe some irregular spotting, some women will have have heavier bleeding that may resemble a period. This happens more commonly when first starting out. If you are having period- like bleeding and it bothers you, you could go back to the pill. As far as getting pregnant, your chances are atill very low even with the bleeding.