I believe you have to live here for one year for a reason unrelated to school (I'm a MN gal) to have residency.
I believe that if you are still using your parents' address as your home address and they move within the next couple of weeks, you will squeak by. Make sure to update your address immediately with pharmcas/the schools you are applying to. Also, changeover all of those residency-implying things like your drivers' license and voter registration as soon as possible.
My guess is that you may lose residency at your current school, though (if that is a factor).