Thanks for your query.Based on the facts that you have posted it appears that you have been trying for conception.
results from fertilization of a normal female egg with normal active motile male sperm.
If menstrual cycle of your wife is regular you should get your Semen analysis
done to know the sperm count
and percentage of active motile sperms in your semen.
Please consult qualified infertility
specialist for advice and treatment.
There are no medicines that can increase the sperm count.