Induction termination of pregnancy (second trimester abortion) has a median time of 14 hours from the start of medication (misoprostol) to expulsion of the fetus. The objective of this study is to evaluate a method of 'priming' on the length of induction termination of pregnancy. "Priming" refers to the use of medication to ready the cervix and uterus so that the uterus is more sensitive to medication and contracts more effectively, and also refers to softening of the cervix so that there is less resistance to dilation. Priming is used extensively before induction of labor for term pregnancy and is also used extensively before surgical abortion in second trimester. We would like to add priming the evening before induction to the usual treatment and evaluate whether the length of the induction process is shortened. Women are admitted to the hospital in the morning to start misoprostol medication, and unless expulsion occurs within 8-10 hours, need to stay overnight.