IUD and BV

Jess • Hello, I work in a sex shop for a living! Yay! Feel free to ask me questions about sex, contraception and anything Gyno!
Hey! I'm coming up to my 5th month with the copper IUD and on the whole loving it.
However, the past two months, right before my period I've noticed a fishy smell and then it ends up with me having BV. I'm starting to smell again this month and I'm now worried that it's going to be a recurrent thing and I'll have to get my IUD removed!
Has anyone else had this problem, what was the solution for you?