Cut on the upper part of my vagina, can it be from a thong?

I woke up three days ago and peed and noticed a tiny dot of blood on my tissue paper when I wiped and I checked my vagina to see what it was and I found a small cut on the upper part only my vagina, not inside but right on top of where the vagina line starts in the front. The night before I was wearing a thong when I had sex with my boyfriend (sorry if it's too much information) but he was pulling on it really hard and it usually goes between my vagina lips but I didn't feel anything until now and now three days later I checked again and there another cut right next to the other cut and I'm worried. I have also noticed that the skin on my vagina is very dry and itchy. I'm just scared this might be herpes, but not sure. Any advice or opinions will help! Thank you in advance