How To Regularise Period In PCOD?

Madam, I am 33 year old lady having irregular periods, I have a son aged 11 years planning to have a child. I got my periods on May 5th but till date I did not get my periods, when I consulted my Gynaecologist regarding irregular periods she said it is not a problem, I got my thyroid test done, and I got all other tests I know that I have polycystic ovaries but to what extent I do not know all those details. But I want to regularise my periods, I consulted many doctors they say not a issue do not worry about periods. I am confused what is the remedy and what can be done to get my periods regularly. I had twins which I lost due to water discharge in 1999 and after that in 2000 my son and after that 1 abortion and recently in last october 1 missed abortion. I am expecting one healthy baby and also regular periods. CAN YOU HELP ME OUT