I missed my period in september then i started bleeding light for 3 days in october now i'm spotting brown blood?

Can call Dr on video: A young and healthy woman can have an irregular period, spotting, or other menstrual symptoms once in a while. If the symptoms are brief, and she returns to normal quickly, and then has normal periods after that, it's not too worrisome. An Ob-Gyn doctor should evaluate if prolonged, recurrent, or worrisome symptoms. A urine pregnancy test can be done a week after missing a regular period.