STD

Patient: I have had unprotected sex within the last week, and this past tuesday, i found small red bumps on the side of my shaft. i attemped to pop the and see if it was an ingrown hair, but they didnt pop. i started using my ance cream to see if it would clam the bumps, and so far it has seemed to be working. i just wanted to know if i could be infected with an STD, but my girlfriend was a virgin at the time of the unprotected sex. what could be wrong? im extremely scared, but the bumps dont hurt at all. i dont even notice them. please help.

Doctor: