I have painful, sharp pains in my pelvis and anal area. what could be happening?! should i see a doctor?

See yout doctor: This problem can only be solved by seeing your doctor and being evaluated face-to-face. After a thorough examination, your doctor should be able to tell you what's wrong and what to do about it.

Lots of things: There are many things that can cause pelvic and anal pain in a young female. The most common is probably an anal fissure, a small tear in the lining of the anal canal, most often from hard stools. Without examination cannot tell if that is the problem or something more serious.