Question: Has any of your clients came out pregnant when having a copper iud? And also does ovulation have any affect towards the IUD, like making it less effective??

Answer: The only method that is 100% effective at preventing pregnancy is abstinence. However, the copper IUD (ParaGard) is a highly effective (99%) non-hormonal method that works immediately after it is inserted and can last up to 10 years. The copper IUD prevents pregnancy by interfering with the sperms ability to reach the egg to fertilize but the user will still ovulate regularly.