I have a sharp throbbing pain right side, pelvic area and nausea, already had period and ovulated, what's wrong with me?

Could b appendicitis. Appendicitis is a possible explaination of your symptoms. If your right lower abdominal/pelvic pain is still present and you are still feeling poorly pleae go to a local emergency room, minor emergency room or your doctor's walk in clinic. Good luck. The risk of delaying your diagnosis is that the appendix can rupture.
Could b appendicitis. Get checked out as soon as possible. Could be appendicitis. Go to the emergency room if you have to.