Not on pill. last 3 months periods been odd. nov period for 2 days, dec-light flow-pink,brownish, but for 5 days, same for this month-2 hpt neg. preg?

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.