I think i'm on my periods two weeks early. but it's lighter than usual. it coming & going. what does that mean? i don't start my periods in two weeks

Irregular spotting: 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.