Fix for broodmother incorrect setup of .preg after birth. Should be based on...

Fix for broodmother incorrect setup of .preg after birth. Should be based on fetus age not just set to 37 - or it's advance pregnancy too fast.

src/pregmod/widgets/seBirthWidgets.tw

@@ -869,7 +869,7 @@ All in all,
 <<set _curBabies = $slaves[$i].curBabies.length>> 
 
 <<if $slaves[$i].broodmother > 0 >>
-	<<set $slaves[$i].preg = 37>>
+	<<set $slaves[$i].preg = WombMaxPreg($slaves[$i])>>
 	<<if $slaves[$i].broodmotherOnHold != 1 && $slaves[$i].womb.length == 0>> /* normally if broodmother is empty and not on hold then implant impregnate her 		immdiately*/
 		<<set WombImpregnate($slaves[$i], 1, $slaves[$i].pregSource, 1)>>
 	<</if>>