First of all thank you dear Queen Juliet !! If you are still having periods after unsafe sex, then there are virtually no chances of being pregnant. But just to be on the safe side, it would be wise to take a home pregnancy test. Please use condom next time. And sometimes mild pain is normal at the time of Periods but these pains should not be more than usual. If you feel acute pain then please consult a registered doctor about it. https://lovematters.in/hi/resource/safe-sex https://lovematters.in/hi/pregnancy/unsure-about-being-pregnant/unsafe-sex-missed-period-am-i-pregnant https://lovematters.in/hi/pregnancy/home-pregnancy-tests-dos-and-donts If you would like to join in on a further discussion on this topic, join our discussion board, ‘Just Ask’ https://lovematters.in/en/forum