why am I itchy down there??

SO I had raw sex on Wednesday and it’s now Monday. I let him cum inside me and he’s the first guy to ever cum inside me. Anyway, the same night, I started itching so badly. I though maybe it was just sum that’ll go away in a bit.., until the itching never went away. It’s been 5 days and I’m still itching down there but I don’t scratch it. Nothing else is wrong like I’m not swollen, it’s not red or bumpy; just itchy. I read maybe I could’ve had an allergic reaction to his semen but it’s very rare. I do have extremely sensitive skin. This is just odd because I’ve had raw sex before w someone else and this never happened.

I do plan on seeing a gynecologist soon.