Hello my lmp was may 30th then I took letrozole 1st cycle tablets from day 3 to day 7. I still haven't got my peroids!! My concern to what extent letrozole is good for pcos ppl and what is the success rate?? If in case I haven't concieved when I may get my peroids?? How many cycles of letrozole can be taken?? As now the condition is not good in my area and it's sealed down couldn't do follicle study after taking tabs So is it fine if I continue letrozole tabs for next cycles as well Kindly guide me