had sex with this girl, was kinda rough, the condom broke at some point towards the end either a bit before or at the end when i came (i pulled out), got her the morning after pill just in case so not worried about that, but this morning i woke up and saw i had a small redness area on the bottom of my penis. just wondering if this is an std or if its from the "kinda rough" sex as i put it earlier.