Do periods change as you get older?

Im 28 yo, and since Ive known myself, mine are regular 26-28 days every month. This month, I was 3 days late and my period was intermittently light and heavy with very little clots. Usually its heavy 1st and 2nd day with a fair amount of clots and medium to light for days 3, 4 and 5.

Has anyones cycle changed as they've gotten older??