ayudar! already in spain, need work permit before marriage...

Hello, so to make a long story short I moved to Spain to marry my long term boyfriend, and of course the paper work has taken almost 4 months to put together, but finally everything is good and we set the wedding date for July... here is the problem... I need to find a job, not after July, but now. I am trying to find information or advice on if there is any way to obtain a work permit before our wedding. I have lived in Spain for four months now, but came on a tourist visa. I had a job offer in a restaurant, but of course they need me to give papers to work. I have researched and researched but so far it seems it is not possible to obtain a work permit in such a short amount of time. If anyone has had any thoughts or ideas that could help, it would be greatly appreciated!!
muchas gracias!