Ive been having problems with my female cycle, im 39yrs old and my period came one month like it always does and it never stopped, I bleed for 18days straight , I went to ER because I was hving pain , feeling weak and blood clots, they took a vaginal ultrasound and found a fibroid on my left side uterus , now im seeing a gyno and she makes me take a pill to stop my cycle and then every month around my cycle time she gives me a pill to make me start my cycle,,, im confused about what she trying to do, please help.