Quite frankly, this is true:
"Asked if Ms. Palin will be able to judge the demands of the vice-presidency with her complicated family life, Mr. Schmidt [chief strategist for the McCain campaign] said, 'She’s been a very effective governor and again I can’t imagine that question being asked of a man.'" --from the NYT, article here
It's not a fair question -- each woman (family) has to decide for herself and her own family how to balance best and it's nobody else's business what she chooses and why. That's feminism's legacy to her.
On the other hand, I do think, since they brought it up, that it's valid to point out that the Palins have described the decision to remain pregnant as Bristol's choice and that Sarah Palin and her ideological counterparts want to take that choice away from all American women. If they had their way, they wouldn't be able to crow triumphantly that she had chosen life -- there wouldn't be a choice to make.
Still, to imagine that in this world of the 24-hour news cycle, where no topic is off-limits that they could have actually have been deluded enough to think that people wouldn't pass judgment on the family...