Hello and thanks for the query
Do not worry the disease is very much curable. Numerous pus cell in the sperm indicates of infection and that will be curable by taking a course of effective antibiotic. As the motile sperm are more than 50% the chances of infertility
are almost zero. Consult your treating doctor and if needed go for culture examination for the selection of effective antibiotic.
The course of antibiotic will cure the infection and you will be infection free. So do not delay the treatment and start the treatment as soon as possible.