Thanks for your query.Based on the facts that you have posted it appears that you have varicocele
and you have been trying for baby.\
Varicocele can be confirmed only on clinical examination and colour Doppler study of the scrotum.
Varicocele may not be the reason for not conceiving.
Please consult qualified Urologist
for assessment for infertility
he may advise you to get your semen analysis
done and further treatment..