Thanks for you query.
I read your query and I understand your concerns.
Following is my reply:
1) Try to visit a gynecologist and find out why there is irregular periods
or delay in periods.
2) Try to find the cause and treat it rather getting regular cycles with medicines
I hope I answered your query. I will be available for any follow up query you have.
Dr. Mahesh Koregol
IVF & Infertility