The definition of an abortion is the willful termination of a pregnancy. Read more about abortion here.
A copper IUD can be used as an emergency contraceptive. Why? Because the insertion of the IUD causes a local inflammatory response which caused the user’s body to attack foreign cells in the uterus like sperm cells. It also changes the lining of the uterus making implantation less likely.
What’s implantation? That is when a fertilized egg implants into the lining of the uterus. The fertilized egg is the moment of conception. It is the beginning of a new life as it will already have separate DNA from its mother.
Now, you decide. Do copper IUDs cause abortions (the purposeful ending of a pregnancy)? When reading directly from the website of the pharmaceutical company that produces copper IUDs the answer appears to be no. However, when you read between the lines there is a chance that the IUD ends a pregnancy.
In the circumstance that fertilization occurs despite have a copper IUD, it could prevent implantation thus ending the pregnancy. The fertilized egg, with its own DNA, is considered separate from its mother and father. It is now a life of its own.
That said, in this scenario the copper IUD prevented implantation of the developing baby thus causing a willful end to the pregnancy or by definition an abortion.
After reading this information you may not be comfortable with copper IUDs but still want to avoid pregnancy.
Natural family planning is always an option and holds zero side effects on your body. A copper IUD, although it is marketed as non-hormonal (and it is) still has side effects, including an increased risk for pelvic inflammatory disease.
Natural family planning can be implemented with minimal effort. Read about it here from the American Pregnancy Organization. I would highly recommend using a Basal body thermometer and an app that coordinates with your temperature recordings.