I ran yesterday too, for a total of about 50 minutes running and walking. It was awful! I think the problem was that it was really, really hot. I was gassed midway through, and I'm still on week one.
Still, I'm immensely happy with myself for sticking with it, even though it is awful. I think I'm covering about 2.5 miles or so, but only 10 minutes out of all that time is spent running. I feel like a faker when people see me jog by, because once I'm around the next curve, I'm back to walking again.
On a more positive note, I found a nice expanse of an old railroad trail that's maintained for walkers, runners, and bikers, and it is only 10 minutes from my house and is on my way home from work. So I'm stopping there every other day on the way home and doing my run. I can't do it in the morning, I'm too evil then.
Good luck!!