Early heavy period, PLEASE HELP

My period usually starts every 26-28 days (26 being the most common). It usually has 2 heavy days in the beginning, 2 moderate days (not light but not too heavy), and 2 light days when it’s ending. That’s 6 days in total. This month my period came on 4 days early (which wasn’t too concerning at 1st). The 1st day was very light but after that it has been heavier than usual. Been passing a lot of small clots. Only had cramps the first 2 days. On the 5th day of my period now, a day that would normally be light is sorta heavy. Doesn’t seem like my period is going to end any time soon. What’s up?