does anyone know what this is??

Its been there for a few days, hasn’t gotten any bigger or smaller. Hurts a little when i touch it but other than that it doesn’t irritate me that much. haven’t shaved due to fear it will make it worse. i know i dont have an STD because i was recently checked and have not had sex with anyone new. I dont think its a pimple because there’s not a head, but do you guys think it could be an under skin pimple? or possibly something else?? please let me know!! #replypost