Pro-Choice

"Actually, the statistics are more grim than Pence admits. Only about 50% of all zygotes successfully implant in the uterine wall and become embryos. And only about 65% of all embryos lead to live births; the rest (about 35%) are lost to natural miscarriage. Therefore, slightly less than one third of all zygotes lead to live births. These statistics come from Gregg Easterbrook in "Abortion and Brain Waves" (2000) and from Morowitz and Trefil, The Facts of Life. Science and the Abortion Controversy (New York: Oxford University Press, 1992). Easterbrook: only about 32.5% (65% of 50%) of all fertilized ovum are carried to term. Morowitz and Trefil: "slightly fewer than a third of all conceptions (72 percent of 45 percent) [or 32.4%] lead to a fetus that has a chance of developing." Morowitz and Trefil point out that not all fertilizations result in successful cell division -- some fertilized eggs don't even become blastocysts. "