Irregular period

Demara

it’s been 18 days since my last cycle and two days ago I started bleeding again but it’s been really heavy, which hasn’t happened since I got my iud, could it be my sexual activity? or just the iud?

p.s. I had sex once during my last cycle when I wasnt bleeding at all, the day after my last day, 2 days after that, and this past friday and saturday 😔