I had my period last jan 12 to 15 and after a week i had protected sex then after a day i just saw light blood while i clean myself and its 2 days now.. what is happening to me? and just earlier it has a blood like tissue... i am worried, please help me..

An irregular period: Irregular periods are one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. There are many options available to help regulate the menstrual cycle. If you think you might be pregnant check then check a home pregnancy test. They are cheap, reliable and available at any pharmacy.