minor fix

src/pregmod/widgets/seBirthWidgets.tw

@@ -283,7 +283,7 @@
 <</if>>
 <<set $slaves[$i].curStillBirth = 0 >>
 
-<<_curBabies = $slaves[$i].curBabies.length>> //just to improve speed and usability here.
+<<set _curBabies = $slaves[$i].curBabies.length>> //just to improve speed and usability here.
 
 <<set $slaves[$i].births += _curBabies>>
 <<set $slaves[$i].birthsTotal += _curBabies>>
@@ -306,7 +306,7 @@
 <</if>>
 
 <<set _afterSize = WombGetSize($slaves[$i])>>
-<<$diffSize = _beforeSize / (1 + _afterSize)>> // 1 used to avoid devide by zero error.
+<<set $diffSize = _beforeSize / (1 + _afterSize)>> // 1 used to avoid devide by zero error.
 
 <</widget>>