Brake pedal goes to the floor
 

Hello,

I've had 3 instances of having my brake pedal go straight to the floor. The first 2 times I thought by accident my foot was too high and had some interference with the floor bed, but the 3rd time it's definitely the brake pedal. They all happened within the first few minutes of driving. There is a bit of play in the brakes but that's probably from brake pad wear. Everything seems normal now, and there's enough brake fluid.
No malfunction light ever went on.
Anyone know what it could be?
Probably not a specific camry question but I thought I would ask here
Thanks for any info.
2002 camry v6

i would not drive this car until it is checked out. sounds like a bad master cylinder to me. when car is in drive, and your foot is on the floor, what does the car do? continue to roll forward? sounds very unsafe to me. hopefully you will read this message before you crash and injure yourself or someone else.