Dear drtariq
you will have to write in detail
If a married couple doesnot conceive after a specific period of three year while living together only then we should start investigations,
causes may be in male as aspermia or azoospermia
but in male dominated society woman is helld responsible and undergoes different test and treatments
in women causes for infertility are many and the remedies are selected according to the cause
I am afraid you are not confusing impotency with infertility
best wishes