Copper IUD issues

Michaela
Hey girls! So I've had a copper IUD for about 6 months as I can't be on hormonal birth control and am allergic to latex 😭. 
I've noticed my periods are substantially longer and heavier! I went from a light 4 day period to 7-9 days of spotting, regular and very heavy flow! 
Anyone else had this issue? XÂ