Sorry to restart this thread but I am doing the same workings out!
If offered the job going for I can say days or half days. I want days but then 10 year old DS will have to stop after school clubs.
No grandparents to take him. So do I work 9-2 to take to clubs for a few years then 3 days when at secondary school? Never mind the school holidays and childcare. 
Anyone else in my position?
Thanks