Okay, so i had got off my period abput 2 to 3 days ago.. i have had intercourse after, and now i am bleeding again .. its not heavy but light.. can this be serious? or what does this mean?

Bleeding: 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. Infections ; hormonal changes can cause spotting. If there is a concern for pregnancy then do a home pregnancy test . There are many options available to help regulate the menstrual cycle. Schedule a visit.