Abortion is defined as the termination of pregnancy before the fetus is capable of independent life. Abortions must be done before the end off six months, or the fetus will leave the womb and it would be considered a premature birth.
There are two types of abortions. One is spontaneous and the other is induced. If the fetus weighs less than 18oz or is less than 20 weeks into the pregnancy, it is usually considered an abortion. Spontaneous abortions are known by another name, miscarriages. These usually occur during the first three months of pregnancy. It is estimated that 25% of all pregnancies end in spontaneous abortion. The second form of abortion is induced abortion. This is the deliberate termination of the fetus. .
There are four main types of induced abortions. The first takes place up to 12 weeks. It is called vacuum aspiration. This is where a tube attached to a vacuum is inserted into the uterus and sucks out the embryo and all other material. The second type takes place after the 15th week and is called saline infusion. Here, the doctors inject a little fluid with a salt solution. This causes the uterus to contract. The fetus is then expelled. The third type is available in the first fifty days. It is a drug called RU-486. It was developed in France and approved for sale there in 1988. Clinical trials in the United States began in 1994.When performed under proper conditions, the sooner the person has the baby, the less risk she is at. The likelihood of complications increase as the woman gets farther into the pregnancy. Although, an abortion has less of a risk of injury than does actually delivering the baby.
Everyone in the United States is covered under the United States constitution, and under the 14th Amendment women have been given the choice of abortion. In 1973, Harry A. Blackmun wrote the majority opinion that it's a women's right to have an abortion. Roe vs. Wade legalized abortion.