I finally did it, ran on a work day. Week 2 is now complete!
For some reason I found this run quite a bit harder than the other week 2 runs, probably for a number of reasons:
I'm not used to getting in from work and having to run, all my other runs so far I've done during the day on days off.
I got a cramp-type pain in my calves. Started off as a niggle in run section 3, by the last run I was really struggling. Pain stopped as soon as I stopped running each time, although they do feel slightly achy now. I am wondering if it's because I haven't drunk enough water today - can this give you cramp?
Oh well, on to week 3!