Maybe I live in a bubble, but the disagreement tends to be between different regions, not between individuals within a region. So unless the woman is a transplant from a pro reproductive rights region to an anti reproductive rights region, I don’t think the sort of interpersonal conflict you have in mind is likely to occur, where the man is vehemently anti reproductive rights and the woman vehemently pro. At least I believe it happens infrequently enough to not assume it as a default.