The divide illustrates growing #Republican tensions over the political cost of the “#personhood” movement to endow an [potentially nonviable] #embryo w/ #HumanRights, which has animated the debate around #IVF. #Medical societies define PREGNANCY [not a person] as starting once an embryo has implanted in the wall of the uterus. But #conservative#legislators say they believe life begins when eggs are fertilized — before pregnancy — & are conflating #BirthControl w/ #abortion. #law#BirthControl