Spots on penis (just worried what could it be)

Men's health
1

image

had this for a week..no burning or anything..just wondering what could it be
2

Did this appear after having sexual activity with another person?

3

i have sex only with my fiancee..for last 4 years…no one else..

4

The spot isn’t clear in the photo, so unable to see exactly what it is. Do you have a good amount of pubes ad experience blemishes/pimples on or around your penis at times?