Im 3 weeks late for my period and had one neg pt i took 2 weeks ago. i had intercourse in august and late sept. is it possible im pregnant?

Take a test: 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.