Ok,. on oct 18 I injected a birth control medication for the first time, I got my period, on November 3rd but at first it was brownish and then My pad would get like a line of blood, and everytime i would wipe, there was enough blood to cover the toilet paper, I took a pregnancy test and it came out negative, When i went to the rest room a small of blood does come out, and mixes with the urine, but it is not alot, (as normal for my period) Im not sure if the BC medication made my period lighter, Today is the 9th and im still bleeding, is this normal??? should i take another preg. test. ?