Hi,
Welcome to ehealthforum,
Brown discharge could suggest possibility of pregnancy. If associated with foul smell and other symptoms like itching etc, it could suggest possibility of infections (infections can also lead to problems with conception). Visit your doctor/gynecologist for further evaluation. PCOS usually responds to treatment with insulin modifiers as most common cause for PCOS is insulin resistance. Consider discussing with your treating doctor/gynecologist about getting started on these along with hormonal contraceptives for better control of PCOS and for regularization of periods. Once the PCOS is under control, ovulation inducers would be started to help you have more than 1 egg getting matured to increase chances of pregnancy. If you are trying for pregnancy, monitor cervical mucus changes and the BBT (basal body temperature) charting to predict your ovulation (along with the follicular study) and time your intercourse for having fruitful results. Have intercourse in positions that allow for deeper penetration for high deposit of semen. Have diet with foods rich in zinc content to ensure better maturation of egg and sperms. Take adequate rest. Drink plenty of water. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately.
Take care.