I am 21 almost 22 weeks pregnant and 2 weekends ago my hubby and I had sex and right after my vagina was so itchy and I found a paper like cut at the crease of my lips. Today when I went to the bathroom and wiped there was a small about of blood, as if you had a small paper cut but I kept wiping that area and it wasn't coming from the paper like cut. Does anyone know what that could possibly be??!!