Herpes

I’m at the doctors because of an itchy sore in my vag, that has bledtwice and it hurts when I pee

I’ve tested twice for stds and I’ve always cane out clean. 😭

They’re gonna do another exam just in case. But I’ve only had two partners. My ex which was my first and now my partner who I’ve been with for a year. How can this be? Has anyone ever had some sore and that it’s not herpes. Im so scared. I don’t want to assume ive been cheated on because I’ve been so loyal to this man. After my ex I tested cause I knew he had cheated but I was clean.