how long do you half to wait before you have sexfter the depo shot and not worry about getting pregnant:eek:

http://www.plannedparenthood.org/health-topics/birth-control/birth-control-shot-depo-provera-4242.htm

Read under the tab: "How Effective is the birth control shot", it answers your question.

No matter what you shoul worrie about getting pregnant. I took my shot properly and I an 11 weeks pregnant. So depo is not always effective.