Most doctors and clinics take precautions to make sure that you are not pregnant prior to administering the Depo Provera injection. This may include giving the injection during your period and/or doing a pregnancy test.
The Depo Provera is effective 24 hours after the first injection. Each injection lasts for approximately 13 weeks. As long as you are on time for your injections, the Depo Provera is 99.9% effective.
If you are concerned about pregnancy or feel you are experiencing symptoms of pregnancy, do a pregnancy test.
28. February 2012
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