Congrats! I actually just had my second laser session this morning--I started last month. It hurt a lot more than I expected the first time (I had to use the YAG laser, at the lowest power setting), but it was a lot more bearable this time around. I was given a little ball to squeeze to ease the pain. My hair started coming out a lot after about five days and continued for about eleven days altogether. Just keep exfoliating gently, and the hairs will often just be all over your hand/sponge/cloth, until you start noticing patches. I don't know how my second session will turn out, but the first exceeded my expectations.
The only really peculiar thing I noticed was that for about three days after getting laser, I had trouble shaving. I would try shaving normally, then more firmly, then with a new razor, but it was like the hairs wouldn't respond. This went away after a few days. Not sure if that was just a fluke with me.
Hope everything turns out well for you!