I posted this same question on the amalgam site cause its metal related, but wondering if anyone knows of any issues with having a copper IUD? Asking for my daughter who has a 4 week old and doesn't want to use the plastic IUD. She gets too moody on the pill. I have NO experience with birth control because I never used it. I will research copper toxicity, also. She's breastfeeding so worried about affects for the baby, too!