If I keep to this target, it will take me 50 days to write 250 pages. However, I feel I will write more than five pages a day. So far, it's been about 8 pages a day. If I keep this pattern, it will take about 31 days (a month) to write those 250 pages.
2 months would be 500, and 3 months 750.
Of course, I must allow for writers block, and I doubt I will write 750 pages.
So, I'm estimating it will take about 2 and a half months