I've just finished the third of ten chapters and extended the plans for the 4th, 5th, 6th and 7th chapters with a rouch outline written for the 9th and 10th chapters.
I'm going to try write at least 200 words every day now that I know that I have a solid plan for nearly every chapter. That is a whole 1% of my target of 20,000 so it sounds achievable and also all those 1's add up. If I stick to at least 200 words every day then I will reach my target by Friday 17 July. So there's a speculative target for ya!