Wisdom Tooth?

I've been having some pain and irritation in my teeth in the upper left back corner of my mouth. My gums in that area have been bleeding for a couple of days. A few people have told me that I am getting my wisdom teeth in. I wasn't sure about this seeing as how i am only 15. I also noticed that the first 2 molars on that side are starting to grow crooked. One is growing inward and the other outward. Is this a result of a wisdom tooth coming in? If it is does this mean that i will have to have it removed? Ill probably make an appointment with my dentist in the near future, but if anyone has information, please share. Thx -Jess