I'll reply the way I have done many times before: I do not think it is reasonable to think of a foetus, or any prior stage, as a valid individual until it can survive outside of its mother's body. At current tech levels that is a little after 3 months. A and B are acceptable for abortion. This does not make it the callous act you suggest but an extremely painful and heart wrenching one. And again i ask: if God puts such a high value on what you insist on thinking as human life, then why do so many pregnancies not go the distance? Surely if He valued zygotes as much as you then a hell of a lot more of them would survive an entire pregnancy.