Why should I get an ultrasound before having an abortion?

After getting a positive pregnancy test, it is important to follow up by getting an ultrasound to confirm that you are having a valid, intrauterine pregnancy. Your last menstrual cycle can give you an estimate of how far along you may be, but an ultrasound will be able to give you more information. For your personal health and well-being, it is important to rule out early miscarriage or ectopic pregnancy before taking a medical abortion.