I've only taken the depo-provera birth control shot once. will my period start back up immediately after the 3 months?

Everyone is...: Everyone is different and the side effects may vary, however the most prevalent side effect is absence of periods after a few months on the Depo Provera (medroxyprogesterone). Most women have intermittent spotting for the first 2 to 3 months and then they start missing their periods completely. This is not a rule for everyone though so it is important you watch yourself and if any doubts get in contact with your gyn dr