When in pregnancy does the heart begin to beat? When do fingerprints form? When can the baby experience sound, taste, or pain? Many people don’t realize how early in pregnancy major development occurs, and misperception on this front influences their views of abortion. You need only a few facts to be better prepared for conversations about abortion, but if you want to be more thorough, learn more from The Endowment for Human Development, any number of week-by-week pregnancy websites, or even an older (and therefore more affordable) edition of an embryology textbook.