Thanks for your query.
I read your query and understand your concerns.
Following is my reply:
Since you have thin endometrium
there might be difficulty in getting periods.
If you dont get periods by provera this time, ask you gynecologist to prescribe estrogen
tablets next time along with progesterone
which will help in endometrial growth and hence bring period.
I hope I answered your query. I will be available for any follow up queries you have.
IVF & Infertility