Emergency contraception is a form of abortion because it is used after conception has occurred. That is a fact that does not change whether one supports legal abortion or not. If a person does not want to wait for the pregnancy test then one must assume the conception was successful or the person would not be seeking a remedy. At that stage in the pregnancy it is much cheaper and simpler to abort via means of emergency contraception but it is abortion regardless and the expectant mother should be made fully aware of what is transpiring.
Emergency contraception, also known as Plan B, is considered by many to be the equivalent of a chemical abortion. However, even for those that believe that life starts at the moment of conception, this would be an incorrect deduction. Emergency contraception works by first delaying ovulation, so that the woman's body cannot produce an egg to be fertilized. The medication then causes the uterus to shed it's lining, and that means that even if an egg has been fertilized, it will not be able to attach to the uterine wall and begin a pregnancy. Emergency contraception will not stop a pregnancy that has actually started, and for that reason, I believe that it is in a totally different class than medication that causes an abortion.