Heavier period

Hey! So I’ve had the Mirena IUD for 2 years almost 3, and my periods have just been vvvl spotting and clotting, but this period now is heavier than normal? I just had a tonsillectomy a week ago so I’ve been stressed... should I be concerned? Or do you think this month is just heavier?

In the past I have had periods like this while on the IUD.