What rate of weight gain should I expect from my gravid female Ball Python?

[grcforce327]

I can't seem to find anybody who has documented weight change throughout ovulation.

With ovulation only lasting 1-2 days,why in the world would there be much of a weight change??? To answer the question in the title,there won't be a big change from after ovulation(being gravid),to the time they are ready to lay.