diff --git a/1.3/Assemblies/RJW_Menstruation.dll b/1.3/Assemblies/RJW_Menstruation.dll
index d8abcdd..01ffd39 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/HediffComps/HediffComp_Menstruation.cs b/1.3/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
index 2ae40fa..26c2898 100644
--- a/1.3/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
+++ b/1.3/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
@@ -969,20 +969,20 @@ namespace RJW_Menstruation
                 {
                     if (Configurations.EnableAnimalCycle)
                     {
-                        HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curStage), tickInterval, parent.pawn, false);
+                        HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curStage), GetNextUpdate(), parent.pawn, false);
                     }
                 }
                 else
                 {
-                    if (pregnancy == null && parent.pawn.health.capacities.GetLevel(xxx.reproduction) <= 0) HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(Stage.Young), tickInterval, parent.pawn, false);
-                    else HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curStage), tickInterval, parent.pawn, false);
+                    if (pregnancy == null && parent.pawn.health.capacities.GetLevel(xxx.reproduction) <= 0) HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(Stage.Young), GetNextUpdate(), parent.pawn, false);
+                    else HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curStage), GetNextUpdate(), parent.pawn, false);
                 }
             }
             else
             {
                 if (cums == null) cums = new List<Cum>();
                 curStage = Stage.None;
-                HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curStage), tickInterval, parent.pawn, false);
+                HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curStage), GetNextUpdate(), parent.pawn, false);
             }
             //Log.Message(parent.pawn.Label + " - Initialized menstruation comp");
             loaded = true;
@@ -1738,7 +1738,7 @@ namespace RJW_Menstruation
                     curStage = Stage.Follicular;
                     curStageHrs = 0;
                     if (follicularIntervalhours < 0) follicularIntervalhours = PeriodRandomizer(Props.folicularIntervalDays * 24, Props.deviationFactor);
-                    HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(Stage.Follicular), tickInterval, parent.pawn, false);
+                    HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(Stage.Follicular), GetNextUpdate(), parent.pawn, false);
                     break;
             }
             action += delegate
@@ -1757,31 +1757,41 @@ namespace RJW_Menstruation
 
         }
 
-        protected void GoNextStage(Stage nextstage, float factor = 1.0f)
+        protected int GetNextUpdate()
+        {
+            // Ticks past the hour. Will be equal except for game start or load
+            int currentOffset = Find.TickManager.TicksGame % tickInterval;
+            int nextOffset = (parent.pawn.HashOffset() % tickInterval + tickInterval) % tickInterval;  // Messy, but HashOffset is negative a lot
+
+            // The -1/+1 to ensure that equality works out to 1 hour and not 0 ticks
+            return ((nextOffset - currentOffset + tickInterval - 1) % tickInterval) + 1;
+        }
+
+        protected void GoNextStage(Stage nextstage)
         {
             curStageHrs = 0;
             curStage = nextstage;
-            HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(nextstage), (int)(tickInterval * factor), parent.pawn, false);
+            HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(nextstage), GetNextUpdate(), parent.pawn, false);
         }
 
 
-        protected void GoNextStageSetHour(Stage nextstage, int hour, float factor = 1.0f)
+        protected void GoNextStageSetHour(Stage nextstage, int hour)
         {
             curStageHrs = hour;
             curStage = nextstage;
-            HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(nextstage), (int)(tickInterval * factor), parent.pawn, false);
+            HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(nextstage), GetNextUpdate(), parent.pawn, false);
         }
 
         //stage can be interrupted in other reasons
-        protected void StayCurrentStage(float factor = 1.0f)
+        protected void StayCurrentStage()
         {
-            HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curStage), (int)(tickInterval * factor), parent.pawn, false);
+            HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curStage), GetNextUpdate(), parent.pawn, false);
         }
 
         //stage never changes
-        protected void StayCurrentStageConst(Stage curstage, float factor = 1.0f)
+        protected void StayCurrentStageConst(Stage curstage)
         {
-            HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curstage), (int)(tickInterval * factor), parent.pawn, false);
+            HugsLibController.Instance.TickDelayScheduler.ScheduleCallback(PeriodSimulator(curstage), GetNextUpdate(), parent.pawn, false);
         }
 
         protected void GoFollicularOrBleeding()
diff --git a/changelogs.txt b/changelogs.txt
index 2663dbc..a9bac38 100644
--- a/changelogs.txt
+++ b/changelogs.txt
@@ -1,3 +1,7 @@
+Version 1.0.6.6
+ - The menstruation cycle used to start ticking exactly one game hour after loading the save. Now the hour timing is consistent across a save/load.
+ - Every womb will tick at a different (but consistent) time after the hour per pawn.
+
 Version 1.0.6.5
  - Handle climacteric induced ovulators a bit better.
  - Compatibility update for Sexperience 1.0.4.2