Ingrown hair?

Hi! I need some quick advice/feedback! Recently I shaved down there and I got a bump (kind of feels like an ingrown hair) outside/on top of my vagina…problem is I’ve recently been with this one guy for a few months now and we’ve been kinda risky lately.

Its only one (medium sized) bump on the outside and is sore when I touch it. Is this an ingrown hair or should I get tested?? Thanks!