Thanks for your query.Based on the facts that you have posted it appears that you have been trying for conceiving your wife.
Please consult qualified Urologist
for detail clinical examination and evaluation .He may advice you to get your semen analysis
done .Further management will be decided by him depending upon the reports of the semen analysis.
Following measure will help you to increase the quantity and improve the quality of sperms..
1) Practice regular exercise for 45 minutes followed by meditation
for 1/2 an hour in the morning.
2) Take high protein diet rich in vegetables and fruits and vit A,C,D,E.
3)Take anti oxidants like Almonds 5-6 everyday..
4) Avoid alcohol and smoking