Well I did it. I did my 20 min run, actually went out undecided as to whether I would do R2 again (although I did complete without problems). Hovered over the button on the iPod, plumped for R3 thinking I might need to break it down a bit and have a break. But no, I plodded on (and I mean plodded), it seemed to take ages for Laura to tell me I'd done 5 mins, then I seemed to zone out - I count 1, 2, 3, 4 constantly over and over and breath in time to that. 10 mins arrived, had a minor panic, I might run out of route! Then plodded a bit more then lovely Laura told me 5 mins left. Well easy peasy I can run 5 mins done that before. So I kept on plodding, passed my house and ran on. Then the lovely Laura told me to walk, I actually think I could have run a bit more. I am so so so pleased with myself thought I might cry, I could never have believed I could be running for 20 MINUTES when I started such a short time ago. Still running really slowly though, I drove the route later and the actual running bit was only 1.2 miles, so worked out was running around 3.7 mph!
Slow and steady think I will stick at that pace for now and concentrate on increasing speed. I was wondering whether to keep running the 20 mins until I was faster or move on to W6 and build speed later.