I started my period yesterday and it is dark looks burgundy and it's not flowing. what does this mean/should i be really concerned? please help!

Common complaint: 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.

Dark menstrual blood: Without more information, the response to your question is not complete. Menstrual blood gets darker to more time has elapsed before it is visualized as vaginal discharge. Many times a clot has formed and blocks the free flow of blood from inside the womb, making the flow less, and the color darker. If the timing is irregular, or other unusual symptoms occur, see your healthcare provider.