Thanks for your question.I can understand your concern.
Since you are having hypothyroidism
,your menstrual cycle has been irregular.
) is a hormonal medication.
This medication acts as a contraceptive pill and treats irregular periods
Hence your doctor adviced you to take Ovral to regularize your menstrual cycles.
Once periods become regular then you will be able to conceive.
You need not to worry.
Do take medication as per doctor advice.
Hope i have answered your question.
If you have any queries i will be happy to help you.