How Else Can Irregular Menstruation Be Regularized?

hello doctor, i am 25 year old married women ,i got my first period at the age of 14 for one year it was regular ,but from last 6-7 year was facing irregular menses problem ,and one year ago i had had gone through utrasound test where i come to know that i am suffering from PCOS ,my doctor first advised me to take regestron pill for 8 days ,after that i was taking yasmin pills for 3 months (from november 2013 to january 2014)still the problem is not solved and then she advised me to take Glycomate-500 once in a day,but still i am not having regular menses and my weight is increased by 10-15kgs ....i am so worried about my menses ...please help me