student fsh and lh is done on days 2/3 of your cycle. Don't let your gp tell you otherwise as mine did. I got my consultants appt and was told all the tests had to be repeated as they were done on the wrong which was very frustrating.
In terms of normal values in not sure about lh and amh but with fsh they look for a number below 10. Mine were 12 which suggests low ovarian reserve.