Developing Film Panic

I started to develop my second film that I had taken around Hartlepool. I had put the film on the reel then started the developing process, that took 20 minutes. It was all going well until I went to poor the developer out into the waste bucket, and the filter fell out and with it followed two reels of black and white film! I grabbed to two films out of the bucket and quickly put them back in the developing tank and screwed the filter back on. I was sure the films were going to be ruined but I carried on with the stop for 20 seconds and fixer for 3 minutes. When I put them in the water it was the moment of truth and I started to pull them off the reel and have a little look. One film only had about 3 usable images on it but the other was absolutely fine and had an entire usable film. 

So i managed make a contact sheet but it needed a about 55 seconds under the light so i'm guessing when it fell out into the waste and got exposed to light to soon it over exposed the howl film. So instead of going up in fives under the enlarger for my test strip I went up in tens and then when I found one at the right shade I did another test strip around that number.