diff --git a/1.3/Assemblies/RJW_Menstruation.dll b/1.3/Assemblies/RJW_Menstruation.dll
index d373e00..869d55e 100644
Binary files a/1.3/Assemblies/RJW_Menstruation.dll and b/1.3/Assemblies/RJW_Menstruation.dll differ
diff --git a/1.3/source/RJW_Menstruation/RJW_Menstruation/Configurations.cs b/1.3/source/RJW_Menstruation/RJW_Menstruation/Configurations.cs
index 21e4187..e2a5d46 100644
--- a/1.3/source/RJW_Menstruation/RJW_Menstruation/Configurations.cs
+++ b/1.3/source/RJW_Menstruation/RJW_Menstruation/Configurations.cs
@@ -383,7 +383,8 @@ namespace RJW_Menstruation
             Configurations.ImplantationChanceAdjust = (int)listmain.Slider(Configurations.ImplantationChanceAdjust, 0, 1000);
             Configurations.ImplantationChance = (float)Configurations.ImplantationChanceAdjust / 100;
 
-            listmain.Label(Translations.Option4_Label + " " + Configurations.FertilizeChance * 100 + "%", -1, Translations.Option4_Desc);
+            string tenMl = String.Format("10 ml: {0:0}%", (1.0f - Mathf.Pow(1.0f - Configurations.FertilizeChance, 10)) * 100f);
+            listmain.LabelDouble(Translations.Option4_Label + " " + Configurations.FertilizeChance * 100 + "%", tenMl, Translations.Option4_Desc);
             Configurations.FertilizeChanceAdjust = (int)listmain.Slider(Configurations.FertilizeChanceAdjust, 0, 1000);
             Configurations.FertilizeChance = (float)Configurations.FertilizeChanceAdjust / 1000;
 
@@ -399,7 +400,7 @@ namespace RJW_Menstruation
             Configurations.EggLifespanMultiplier = (float)Adjust / 20;
 
 
-            int semenlifespan = (int)(-5 / ((float)Math.Log10((1 - Configurations.CumFertilityDecayRatio)*10) - 1)) + 1;
+            int semenlifespan = (int)(-5 / ((float)Math.Log10((1 - Configurations.CumFertilityDecayRatio) * (1 - Configurations.CumDecayRatio) * 10) - 1)) + 1;
             string estimatedlifespan;
             if (semenlifespan < 0)
             {