Thanks for you query.
I read your query and I understand your concerns.
Following is my reply:
1) Obesity and polycystic ovary are few common causes of irregular cycles.
2) If you are overweight
try to reduce weight.
3) Try to know the reason from a gynecologist and treat the same
I hope I answered your query. I will be available for any follow up query you have.
Dr. Mahesh Koregol
IVF & Infertility