I BARELY GOT THE SHOT FOR THE FIRST TIME A MONTH AGO BUT NOW IM SUPPOUSE TO BE ON MY PERIOD AND IM BARELY BLEEDING IF I COULD CALL WHAT COMES OUT BLOOD. ITS REALLY DARK LIKE BROWNISH BLACKISH AND I DONT KNOW ITS NOT NORMAL FOR ME BECAUSE MY PERIOD HAS NEVER BEEN LIKE THAT . SO I WAS WONDERING IF I COULD BE PREGNANT OR SOMETHING WENT WRONG WITH THE SHOT?