5 days after a depo-provera shot, can i get pregnant?

Well: Depo-provera starts working right away if you give it immediately if given within days 1 to 5 of your cycle. Who states: “she can also have the first injection at any other time, if it is reasonably certain that she is not pregnant. If it has been more than 7 days since menstrual bleeding started, she will need to abstain from sex or use additional contraceptive protection for 7 days.”.