I have an early period for last 2 months after an interval of 2 weeks.in first 2 days there is a thick brownish colour discharge and then regular bleeding.. the period span is 8 to 9 days.my regular periods do not take 28 days cycle and are a bit earlier.I m of 22yrs and had usg of uterus and hormonal levels checked last yr,everything was in normal limits... is there any abnormality there..