Hello and welcome to HCM
I am a General Physician and wants to clear your doubts. Usually the ovulation in female occur at 14-18 days of mensuration and the process of fertilization also occur in these days. So you have very less chance of be pregnant unless you have some problem in mensuration. The period i.e. first 10 days and last 10 days after periods are called as safe period because usually pregnancy
does not occur in this time. So dont worry and wait for your next periods.