diff --git a/1.3/Assemblies/RJW_Menstruation.dll b/1.3/Assemblies/RJW_Menstruation.dll
index 607ca73..6a452ea 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/Patch/RJW_Patch.cs b/1.3/source/RJW_Menstruation/RJW_Menstruation/Patch/RJW_Patch.cs
index d8c5d47..a74656d 100644
--- a/1.3/source/RJW_Menstruation/RJW_Menstruation/Patch/RJW_Patch.cs
+++ b/1.3/source/RJW_Menstruation/RJW_Menstruation/Patch/RJW_Patch.cs
@@ -122,6 +122,28 @@ namespace RJW_Menstruation
         }
     }
 
+    [HarmonyPatch(typeof(PregnancyHelper), nameof(PregnancyHelper.CanImpregnate))]
+    public static class CanImpregnate_Patch
+    {
+        private static bool PregnancyBlocksImpregnation(this Pawn pawn, bool _)
+        {
+            if (!Configurations.EnableAnimalCycle && pawn.IsAnimal()) return pawn.IsPregnant();
+            else if (pawn.GetMenstruationComps().Any()) return false;
+            else return pawn.IsPregnant();
+        }
+        private static readonly MethodInfo IsPregnant = AccessTools.Method(typeof(PawnExtensions), nameof(PawnExtensions.IsPregnant), new System.Type[] {typeof(Pawn), typeof(bool)});
+        public static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> instructions)
+        {
+            if (IsPregnant == null) throw new System.InvalidOperationException("IsPregnant not found");
+            foreach(CodeInstruction instruction in instructions)
+            {
+                if (instruction.Calls(IsPregnant))
+                    yield return CodeInstruction.Call(typeof(CanImpregnate_Patch), nameof(PregnancyBlocksImpregnation));
+                else yield return instruction;
+            }
+        }
+    }
+
     [HarmonyPatch(typeof(Hediff_BasePregnancy), nameof(Hediff_BasePregnancy.PostBirth))]
     public static class RJW_Patch_PostBirth
     {
@@ -216,6 +238,7 @@ namespace RJW_Menstruation
         private static readonly FieldInfo MinimumFuckabilityToHookup = AccessTools.Field(typeof(RJWHookupSettings), nameof(RJWHookupSettings.MinimumFuckabilityToHookup));
         public static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> instructions)
         {
+            if (MinimumFuckabilityToHookup == null) throw new System.InvalidOperationException("MinimumFuckabilityToHookup not found");
             bool first_fuckability = true;
             foreach (CodeInstruction instruction in instructions)
             {
@@ -251,6 +274,8 @@ namespace RJW_Menstruation
         private static readonly FieldInfo MinimumRelationshipToHookup = AccessTools.Field(typeof(RJWHookupSettings), nameof(RJWHookupSettings.MinimumRelationshipToHookup));
         public static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> instructions)
         {
+            if (MinimumAttractivenessToHookup == null) throw new System.InvalidOperationException("MinimumAttractivenessToHookup not found");
+            if (MinimumRelationshipToHookup == null) throw new System.InvalidOperationException("MinimumRelationshipToHookup not found");
             LocalBuilder pawn_index = null;
             // Like in the last one, we switch the arguments around for the second load
             bool first_attractiveness = true;