Oh, I see, just because one thing MIGHT happen, you condone the killing of thousands. This higher ethical conscienceless is amazing. But, of course, no one claims that the mother's life does not need equal protection.  

Former U.S. surgeon general C. Everett Koop said: "In my thirty-six years of pediatric surgery I have never known of one instance where the child had to be aborted to save the mother’s life." 

Now for the extremely rare situations where pregnancy is a direct threat to the life of the mother, a solution, Koop continues as follows:

"If toward the end of the pregnancy complications arise that threaten the mother’s health, [her obstetrician] will either induce labor or perform a Caesarian section. His intention is to save the life of both the mother and the baby. . . . The baby’s life is never willfully destroyed because the mother’s life is in danger."