Hit a dog when cycling today -- advice?

[athena]

Thank you all so much for the comments.

There is a leash law here, I believe. Most owners seem to follow it, although I have run across some that let the leash stretch across the trail (dog on one side, owner on the other), which seemed like a dangerous situation to me.

I think I'm mad at myself about last night because usually I am one of those overly-cautious people that slows down before every intersection, around every person, etc. I think I was upset about work and focusing on that, instead of riding, which was a huge mistake. I did ride on the main road home and am trying to do that more often, but being ultra-sensitive to noise and smells, the trails are sometimes a more appealing option for me.

I also usually ride in the early morning and have started riding at night (pretty awesome), so may not be as familiar with what is a reasonable speed to travel on the trail.