Hello
Firstly,you are not supposed to continue the drug
Pause without consultation of your gynaecologist.
Your main problems are delayed periods,brownish discharge before periods,prolonged heavy bleeding.
These symptoms may be caused by pelvic inflammatory disease/dysfunctional uterine bleeding(
hormonal imbalance in body)or
Polycystic ovary syndrome.
Brown discharge can be usually seen in delayed periods,brown colour due to old residual blood of previous months menses.Cause among above mentioned possibilities can be ruled out using certain investigations like blood hormonal levels,vaginal/cervical swab ,USG pelvis.
PID is treated by antibiotic course of cipro/azithro for 7-10 days.
PCOS /DUB requires treatment with oral contraceptives.
Iron supplementation adviced against
anaemia.
Keep body weight within control.
Hope this information helps.
Thanks