Yes, you are thinking C25K only has 9 weeks, but I am not confident of progressing to anything more than 5K until this running stuff is clearly totally habitual.
These two runs were a complete break for me.
W11R3 was my first run away from home - I was at a conference in Swanwick, Derbyshire, and I just followed a local road for 2.5K and then turned round and ran back. It was uphill out, and so downhill back - and this suits me just fine Really excellent run, very pleased with myself, and grateful that I had the courage to do it.
W12R1 this morning was also a break, although I am back at home. First run in the rain - this has to be a record for running in Cumbria (1 wet day in 12 weeks), and also the first time I decided to venture off-road for any distance. Well, the wet grass was okay, the rough ground was manageable, but the brambles... And then I hit a no-entry sign on the footpath where the pipeline is going through - and I admit, I ignored it and carried on. In the end only 3.8 Km in 32 minutes - all the stiles and those b......y brambles.
Working towards a Parkrun on Saturday.