Thanks for you query.
I read your query and I understand your concerns.
Following is my reply:
1) Please get a scan done from a gynecologist to check presence of fibroid/polyp etc..
2) If everything is fine, ask for opinion on diagnostic hysterolaparoscopy to know the cause from your gynecologist
I hope I answered your query. I will be available for any follow up query you have.
Dr. Mahesh Koregol
IVF & Infertility