Dear if there has been any unsafe sex before, and the period not come yet as well as pregnancy test is negative, please consult a registered doctor soon. https://lovematters.in/hi/pregnancy/unsure-about-being-pregnant/unsafe-sex-missed-period-am-i-pregnant 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