Hello Doctor, Its Been 2 1/2 Year We Got Married..and

Hello doctor, its been 2 1/2 year we got married..and we are trying to have a baby for the past 2 years. We got tested with HSG, thyroid, harmone, semen analsys (of my husband) and every thing resulted normal and good.But its not happening. We haven't also used contraseptives at any time.
We met the doctor (gynic) and after looking at the reports he said every thing is fine and nothing to worry.. and he asked me to come on the 2nd day of my menses and he spoke of some injection.
Please throw some light on this issue...as why iam not getting pregnant when every thing is normal..and should i meet the doctor on the 2nd day of menses as suggested by him...please help me on this as we r getting much distrubed on this issue