hello and welcome to the forum,
thanks for consulting,
pus cells in urine does indicates infection.
you are going through the correct line of treatment presently , as you have given the urine for culture and sensitivity and waiting for the report.
pus cells in urine indicates infection in the urinary tract
the infection can further increase and spread if not treated with in time.
complications like premature rupture of membrane, premature delivery can occur.
so continue with your treatment and get well soon