diff --git a/1.5/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs b/1.5/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
index 437478c..fdca1a9 100644
--- a/1.5/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
+++ b/1.5/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
@@ -1222,7 +1222,7 @@ namespace RJW_Menstruation
             float avglittersize = AverageLitterSize();
 
             float fertStartAge = Pawn.RaceProps.lifeStageAges?.Find(stage => stage.def.reproductive)?.minAge ?? 0.0f;
-            float fertEndAge = Pawn.RaceProps.lifeExpectancy * (Pawn.IsAnimal() ? RJWPregnancySettings.fertility_endage_female_animal : RJWPregnancySettings.fertility_endage_female_humanlike);
+            float fertEndAge = Pawn.RaceProps.lifeExpectancy * (Pawn.IsAnimal() ? 0.96f : 0.58f);   // RJW default fertility_endage for animal and humanlike
             if (fertEndAge < fertStartAge) fertEndAge = fertStartAge;
 
             float raceCyclesPerYear = RaceCyclesPerYear();