My wife has PCOS, and we conceived in May with the help of a testing kit. All I can say is if one finds oneself in such a predicament, who knows what may help from person to person and from case to case.
If you are having regular monthly periods, there is a good chance that the ovulation predictor kit will work. It can very difficult to time testing if not. PCOS usually causes LH levels to be constantly high, making the ovulation kit an unreliable way to test for ovulation. Try using the mucus method instead?