diff --git a/1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs b/1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
index b3b1e84..d2b9c86 100644
--- a/1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
+++ b/1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
@@ -639,7 +639,7 @@ namespace RJW_Menstruation
 
                 CumOut();
                 
-                if (pregnancy == null && (Pawn.health.capacities.GetLevel(xxx.reproduction) <= 0) || EggHealth <= 0) curStage = Stage.Infertile;
+                if (pregnancy == null && (Pawn.health.capacities.GetLevel(xxx.reproduction) <= 0 || EggHealth <= 0 || Pawn.SterileGenes())) curStage = Stage.Infertile;
                 switch (curStage)
                 {
                     case Stage.Follicular:
diff --git a/changelogs.txt b/changelogs.txt
index 0b61fda..bd3a237 100644
--- a/changelogs.txt
+++ b/changelogs.txt
@@ -2,6 +2,7 @@ Version 1.0.8.1
  - Added the option for humans to start Biotech pregnancies if the DLC is enabled. If set, non-humans will use the old multiple pregnancy instead.
  - Babies conceived through the multiple pregnancy option will now properly inherit xenotypes.
  - Properly track biotech pregnancy through labor.
+ - Pawns that are genetically sterile will no longer produce fertile cum, nor have a menstrual cycle.
  - A biotech pregnancy will pause before going into labor if another womb already is in labor.
 
 Version 1.0.8.0