any tips? or tricks?

My husband and I have been trying for 4 years... we finally went to the doctor to start testing to make sure everything is ok... the basic test for me all came back fine but the Sperm analysis he toke came back saying the shape was abnormal (only 9% was normally shaped) he has to take the test again to b sure b4 any more testing is done on me... does anyone know anything he could do to help?