is a difficult situation and you may be lucky to conceive within first use however,don't feel disappointed if it doesn't happen so.
The medicines being given o you are perfectly all right and stick to them.
You may have o take METFORMIN
for 6 to 9 months for the proper effect.
The most important part of your treatment for PCOS however,is reduction of weight and good amount of exercises on daily basis.
Be patient and stick to your doctor's recommendation.
Sooner or later you will be successful.
Best of luck