I always have regular normal periods but this month is different. I also have been sexually active through this month. But I was suppose to get my period today and i thought i got my period after i saw a little bit of blood i put a tampon in and when i took it out 4 hours later my blood was brown . I usually get brown blood at the end of my period not the first day. what does this mean.... Update !!! it wasn’t a lot of brown blood either and i wake up this morning with no blood at all!