I Am Naturally A Irregular Period Person. I Used To

I am naturally a irregular period person. I used to have periods once a yr from 12yrs old till 29yrs old. At the age of 29. I went for an abortion. After that i was having rwgular mensus for 2yrs. Now after marriage 1yr bk it stopped again n i am not having mensus for almost 1yr 2 months. I am told to take duphaston by doc. How will this regulate my mensus has I still Dnt have any signs even after taking it