when I first got my period I had reddish brown blood which is normal for 7 days.then the second time I had my period it was yellow and slimy and never stopped since overtime the fluid became clear and still hasn’t stopped I tried birth control 2wice the second time I used a stronger one and it still didn’t work.its now almost 3 years since I first got my period.my doctor said it’s normal in the first years for my cycle to be irregular but I’m not sure plz help.im also only twelve and hit puberty early specifically pubic hair no boobs until I started my period