so I have 2 period tracking apps one that tracks my cycle based off of a 28 day cycle ( my normal cycle since I was about 14) and one that tracks a 35 day cycle (normal cycle length after my miscarriage in October). This month my period started 3 days late based of Glow (my 28 day cycle tracker as expected) but oddly enough started 3 days early based off of (Rosa my 35 day tracker) usually my period is heavy, and cramps are really bad, bleeding is usually BRIGHT BRIGHT RED. This time its light, and more of a dark brown and not painful at all. Should I be worried ?