I a 23 year old with confused hormones i think, firstly for the past month i have had thick discharge which is dis colorant with pink, red, brown and sometime bright red blood which would then stop for a day or 2 then it would occur again, also during intercourse i would also start bleeding bright red blood. I  also had 2 pregnancy done which both are negative, doctors stating its a bladder infection but im concern that its more. about 4 days ago i experienced pain which felt like contractions. Please assist with some information.