Periods after 4day of sex r bit lighter nd bleeding quantity is less(60%than usual) wid clots bt amount of pain is same!implantationbleeding, pregnant?

Irregular periods: 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.