2 days after unprotected sex i found 3 red bumps with white top on shaft 1 inch from foreskin equally distributed on the circ.not itchy and no pus.

Possible STI: If this appeared after having intercourse it could be a sexually transmitted infection so you would need to be checked and possibly tested in order to receive treatment. If the lesions are painful it could be herpes but like I said, we would need to look at it in order to give you a better answer. Make an appointment with your doctor.