Hi, you should remember that the morning after pill can prevent 86% of pregnancies but can not provide 100% protection. So, If you are not planning a pregnancy
& are not ready for one then you should use a reliable method. If you have taken the morning after pill then it is very likely that it has done the work, periods may be late for few days in normal women & this may be accompanied by all the above symptoms. So, hope for the best but if the overdue persists, please do pregnancy test. Good luck.