Treatment to get Pregnant?

hun i searched for clomid and all i cud c is that its not very helpfull as my personal view.. but im on letrozole and i think its good..its my 1st cycle and i hope it worked as i hear good stories abt it..im irregular my doc gave me letrozole from day 2 of my cycle for 6 days ...twice a day..and then for having a regular period i took duphaston so that i wont hav period on time if im not pregnant..i doesnot harm baby ..