Copper IUD?????

I've had PCOS for 3.5 years and mostly it makes my periods nonexistant. My endocrineologist got me on Metformin and fenofibrate and it has me somewhat regular... But still my periods are Annoying light. Like, 'hurts to put in a light tampon' kind of light. I'm wondering if any of you ladies have tried getting the copper iud as a way to make your period a bit heavier?

Please no negativity.