OK First things first. Answer these questions:

1) DOES YOUR BRAKE PEDAL HAVE PRESSURE? WHAT WE MEAN IS, WHEN YOU PRESS IT, DOES IT GO ALL THE WAY TO THE FLOOR?
2) DOES YOUR MASTER CYLINDER HAVE FLUID? IF NOT, REFILL AND RE BLEED
3) MAKE SURE YOU DONT HAVE A BLOWN SEAL ON YOUR CALIPER, LOOK FOR FLUID ON YOUR TIRED USUALLY THE INSIDE (WHEN ITS NOT RAINING)
4) BRING THE CAR BY HERE FRIDAY AND ILL LOOK AT IT