EMERGENCY: IUD BLEEDING 🚨

Please help; So I've been bleeding heavily as if it were to be my period but not my period cuz my periods will come much more heavier but I mean it in the sense that if I stand up in the morning I'd feel the blood come out and if I push in rare occasions it will come out but then in the afternoon I wont have as much then I'll be spotting light red blood, it's an on and off situation I don't know if I should worry or when to worry. This started on the 20th of July and I thought it was my period but I wasn't due then but I thought it was the effect if the IUD and the period.

I've been getting clot but not huge ones; clots the size of a watermelon seed. But this morning I sat on the toilet and blood just dripped down and then stopped U cleaned myself and it wasn't much on the toilet paper. Should I go to the ER or wait for my appointment (08/21) , how bad is this?

This is the aftermath of me wiping doesn't seem like spotting to me it's been like this since the 20th and getting heavier.