The term "pro-life" may creates a false dichotomy when put in that way, but if you think at it as the crux of the argument not so much. Case in point you kind of miss it in your last sentence and have it in the opposite: if a foetus is a life (i.e. a person) from day one, then it follows women shouldn't have a choice (because it's not their body anymore, in that context, like a weirdness of nature that a different person with normal rights inhabits a mother's body). They are not saying it will lead to a happy experience either to raise that child, but that's an unfortunate consequence of the "life" argument, hence "life vs choice". Edit: But I agree it's not a good way to frame the debate, "Person at conception vs Person at X weeks/months" would be more relevant to each side position IMO.