I honestly wouldn't be able to notice any change, I doubt most guys would. Secondly, I wouldn't give a damn.
I've never known a girl to not shave for longer than a couple days if she was getting laid, in fact, most girls I've been with didn't even want me to see them with their pants off if it'd been more than two days.
But I wasn't saying they don't, I'm saying it'd certainly be more noticeable than the former.