Hi Im 26 Years Old And I Have Not Had

Hi im 26 years old and I have not had a period in 8 months..not pregnant! Ive taken 4 pregnancy yes and all negative plus im not gain in weight or showing or any pregnant side effects..today I started to have a lil bit of brown discharge..but 2 years ago I had to go to tge emergency room because I had an ovarian cyst rupture..can ovarian cyst cause this problem I am having..and I also do not have health insurance so thats why I have not been to the doctor.