HELP !! (Genital sores)

A week ago exactly I had unprotected sex with a person I do not know very well. He said he got tested last month and I didn’t necessarily trust him but I was tipsy so it put my mind at ease for the time being. Of course, it may as well have been a complete lie.

Yesterday I wake up itchy down there with a burning sensation every time I pee. At first I thought I might have BV or a yeast infection so I started using a gel, which soothed the burn a bit.

This morning I woke up due to discomfort and itchiness down there. When I showered, I realized I have like 3 sores (not clustered, but on different areas): 2 are on opposite sides of my lower labia and the third is a bit higher.

IVE NEVER EXPERIENCED THIS BEFORE.

I’m starting to think it’s not a yeast infection anymore.

Is this herpes ??? Is it gonorrhea or syphilis ?? It showed up only a week later after the sex so it’s definitely some STI I am guessing but I don’t know what to do.

It’s 6am rn and Planned Parenthood does not open until 9 so I am freaking out a little bit.

Please help with any advice !