Further Reading

When do human beings begin?

The best kept (ugly little) secret in America

Lying about contraception

A Textbook Example

Embryology Made Simple

Emergency Contraceptive Pills (ECPs, a.k.a. "Morning-After" Pills)
http://www.prolife.com/MorningAfterPill.html

Whether the "Morning-After Pill" Can Be Abortifacient
http://www.lifeissues.net/writers/she/she_24map.html#b6