 [ Symptoms ] chances of being pregnant after having unprotected sex within the 10th 12th week of being on the depo shot  i first started getting the depo shot august of last year i received a shot on september 5th within the 10th and 12th week on that shot i had unprotected sex multiple times then i received the shot on november 28th recently i have been very tired all of the time i have been sleeping half of my day awake yesterday i woke up with a sharp pain in my lower abdomen that went away after a few minutes but felt severe i know there have been many women pregnant on the depo before [ Disease ] actually it has been found that substance abuse is a way for a person with bipolar disorder to self medicate themselves as a way of coping with this disorder most of the rest of what the other person is answer is pretty accurate however the migraine is thyroid issues and such are all side effects from the medications that are used to treat bipolar disorder another side effect is called tardive dyskinesia which causes the person to have uncontrollable muscle spasms and there is no cure as of yet for this horrible side effect i have ba in psychology and also have bipolar disorder and am a recovered drug addict