The baby is a human life or it isn't. If it is, you don't kill it.
Regarding ranch animals, the culture really is different. That doesn't change my feelings on the matter. Just curious, do you eat meat? Have you ever toured a processing facility? I live in Wyoming and I'm surrounded by the ranching culture. Watching cattle go into the slaughter facility and get hit by the cattle gun is rather shocking. But it's a rancher's livelihood. And yeah, I still want my tenderloin steak often.