Hi . Dr I M Married From 3 Years We

Hi . Dr i m married from 3 years we tried but we have no babies when me n my wife go for check up then we find out there is a problem, my sperm count are very weak , so i take different medicine from 2 years but there is no responce.now from 1 week there is one more problem with me my pinies is not stand during sex. Plz help me what can i do?