Am 21 year old vergin girl. Am having 30 day regular cycle but 2 day period. Is it normal? Am I ovulating?

Normal. Normal range of cycle is from 21-35 days and period from 2-7 days. Your cycle is within normal limits. It is likely that you are ovulating. More about menstruation: https://www.womenshealth.gov/a-z-topics/menstruation-and-menstrual-cycle.