I started my period three days ago however it only last a day and now i'm just spotting. is that normal? i had brown discharge prior to starting

Potentially: All cycles aren't the same but because this has been atypically short, check a pregnancy test and follow up as required. All the best.

An off month: 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.