There was a slight problem with the scene after MC brings Jamila back home from the hospital, I get an exception due to an undefined variable "day77jamilaMilked". I think I see why as well. If "jamLactation" is zero, than we never enter into the menu option around 21585 in script.rpy and thus, "day77jamilaMilked" never gets defined. I personally edited this and simply added "$ day77jamilaMilked = 0" to line 21576 (the line before "if jamLactation == 1") ensuring that it is defined.
I guess this is due to me not going for any of the Jamila lactation stuff or whatever and around line 21786 it has "if day77jamilaMilked == 1" and that is where the undefined exception occurs as the menu options to go for milking or not never happens and it never gets defined at all.
Whenever adding a variable into the game, you should get into the habit of adding a definition for it at the top of the file (or in a separate variables file) where it gets defined with a default value (like zero or whatever).