Hello,
Welcome to ehealthforum and thanks for writing
In polycystic ovaries the hormone dis-balance is such that there are long intervals in between two periods. The best way to regularize the periods in such a situation is to take oral pills.Usually in cases of cysts along with insulin resistance the medications prescribed are the ones which were prescribed to you initially.
If your cycles are regular then the Krimson might not be required.It cannot be commented exactly without clinical examination and evaluation of the reports.Instead you can get an Ovulation study done by a Gynaecologist which would help in ruling out whether the egg is being released or not in your cycles.You can also plan the intercourse accordingly when the egg is released.
The gestin which you have been prescribed by other doctor is progesterone hormone which is given for sustaining pregnancy if there is hormonal deficiency in a woman.It would not cause any changes in the conception if you have conceived.
Missed period can be indicative of pregnancy.You can get a Blood HCG test done after a week or so if the periods do not start.
Folic acid you can continue as it has to be taken 3 months preconception and helps in prevention of any neural rube defect in the baby.
Regarding the precise diagnosis I cannot comment here without examining you and studying the reports.A repeat USG scan can also be done to check the status of present cysts.Kindly be in follow up with your Gynaecologist and take the treatment accordingly.Relax and do not worry as woman with PCOD have conceived though it may take little time.Have healthy balanced diet and restrict smoking and alcohol use.
Take care!