I had my daughter June 25 2013 and received a birth control shot on 26 of June of this year. I bled for 8 weeks I figured my period started August 25 and end on the 31 because that's when the bleeding ended. I had unprotected sex with my husbandon the 5th of September and he withdrawed I'm positive. My questions are is my birth control shot still effective? Is it a chance I can be pregnant?

Withdrawal is not for sure. You must know that. Sperm can be left behind and there is also pre-ejaculate. Are you pregnant, yes, it is possible. Did you want to be?