I just felt this abnormal sharp pain on my left side (right side if you'd check it out.) This was the first time that I experienced. I used the restroom and I wiped and there was blood showing. I got nervous because previous to this experience, I was feeling pain in my stomach. I am currently sexually active with my boyfriend and we've been having vaginal intercourse for the past month or so and he doesn't use use any protection. Never has he. Also my back is in pain and I've just been sick lately. What could this be?