If it's not at breakfast, that could be affecting your fertility. Researchers wanted to see if the time of day when you consume the most calories can have an affect on insulin levels in women with PCOS:
The findings, recently published in the journal Clinical Science,
showed improved results for the group that consumed a big breakfast. Glucose levels and insulin resistance decreased by 8%, while the second group ("dinner") showed no changes. Another finding showed that among the "breakfast" group, testosterone (one of the androgens) levels decreased by nearly 50%, while the "dinner" group level stayed neutral. In addition, there was a much higher rate of ovulating woman within the "breakfast group" compared to the "dinner" group, showing that eating a hearty breakfast leads to an increase in the level of fertility among woman with Polycystic Ovary Syndrome.
Read more: http://www.medicalnewstoday.com/releases/266880.php 
Would this be a dietary change you would try to see if you have improvements in your cycle?