hey everyone, my period wasn't due for 11 more days when i started bleeding but it didn't look like my regular period. it was brownish pink and kind of mucousy. That only happened for half a day. the next day i started bleeding again but it was bright red. then that too stopped over night. now today i woke up and there was no blood until i went to the bathroom and there was blood again. i also have mild cramping under my belly button and sharp pains in my left breast for a week now. i went to the doctors today and got a blood pregnancy test because i thought it was implantation bleeding. the test came back negative. do you think maybe i went too soon for the test? or any ideas what else it could be??