28 days cycle every time.last happend on 5th april.next due date was 3rd may.had sex on 13 to 20th. from 28th i am bleeding. lil worried.wats that?

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.