Not due for period but...

But i've had bright red, watery blood (which i never have, it's usually brown/dark red and has been for more than a year, since i got my IUD) for the last 5 days. I'm not having bad cramps or any other symptoms of a period, and the blood seems to have some small clots.. idk what's going on, has anyone had anhthjng similar? i'm really sure it's not my period bc i just had mine a couple weeks ago and my iud makes them very irregular, usually spaced out not close together.