weird pimple on my vagg😭

I need help!
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So today i've been walking around school and i felt so uncomfortable down in my area.. i origanally thought that i prolly had a camel toe or something so I went to the bathroom to "pick it" but it continued to feel uncomfortable and actually kind of painful.. so when i got home i rushed to see what it was & its a pimple... personally I don't think it's a herp because I am a virgin I'm never had any sexual contact besides kissing my boyfriend but he's clear from STDs so I don't know what this is and I'm actually really worried! helpp?? ☹️