scared of abnormal bleeding!

So on Tuesday I had sex or attempted to have sex with a guy I have been dating! When he entered me it felt like Iosing my virginity all over again. Just a great amount of pain and soreness. After a minute I stopped cause it didn't feel right and I felt very wet. I asked him if I was bleeding and sure enough he had blood all over his dick so I ran to the bathroom. I wiped for five minutes and had bleeding. The blood was bright red, but there were no clots. The bleeding didn't last long at all. I put a pad on and the next day it was completely clean still. Just for those five minutes it seemed like a lot of blood when I wiped. Some tmi right here.... I felt with my fingers down there to figure out where the bleeding was coming from and all I could figure out was that it was definitely not coming from my cervix. Has anyone had this problem before or have an idea what's going on with me? I'm seeing my gyno tomorrow cause I'm really freaked out about this!