Had unprosex on the 6th and 7th day of my period.always had a regular 28days cycle and period lasts for 7 days.what is my chance of getting pregnant?

Although: pregnancy is possible at any time - the chance is reduced if not within a certain window of time. With a 28 day cycle- you would ovulate at day 14. Normally optimum chance of conception would be sex beginning several days prior to ovulation, during ovulation and possible a couple of days after. Chance isn't "high" but take home pregnancy test if period is late & use protection every time!