Hi,
PCOS is a condition in which along with non-ovulation and delayed menses, you get high male hormone levels and high insulin levels in the blood. This condition needs to be treated on all the three fronts for a successful outcome.
To achieve ovulation, you will need to take 
Clomiphene Citrate, may be with Metformin. You should monitor ovulation with 
ultrasonography and have sexual relationship on and around the day of ovulation. The period after that may be supported by 
Progesterone or hCG. If Clomiphene does not work, you may have to go for 
gonadotropin hormone injections for induction of ovulation.
Along with the medicines, please have a control on this condition by diet control and exercise. Obesity, particularly increased waist/hip ratio is a characteristic of this condition. So have controlled intake of calories with high protein and low 
carbohydrate and fat diet. Also, along with the gymnasium exercises, you should walk for 40 minutes minimum in the morning and evening each with 90 steps per minute.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Iven Romic Rommstein, General Surgeon