How long have you waited for Administrative Processing for US visa in China?

Nobody can help you with this unless you really know some politicians personally well already. Lawyers could help but they take time to review your case and process and I don't think you'd get any results within 5 days considering it's now Saturday/Sunday. The fact that your fiance is Pakistani only adds to the prolonging the process. If you've paid attention to national security affairs, you'd understand Pakistan is not considered a friendly nation to the US. You really should have planned your wedding in the US until you 2 know both of you could make it into the country by the wedding date. Visa applications are never guaranteed, could take days, weeks, months, or never.