diff --git a/1.4/source/RJW_Menstruation/RJW_Menstruation/Patch/Biotech_Patch.cs b/1.4/source/RJW_Menstruation/RJW_Menstruation/Patch/Biotech_Patch.cs
new file mode 100644
index 0000000..52714ea
--- /dev/null
+++ b/1.4/source/RJW_Menstruation/RJW_Menstruation/Patch/Biotech_Patch.cs
@@ -0,0 +1,50 @@
+using HarmonyLib;
+using RimWorld;
+using Verse;
+
+namespace RJW_Menstruation
+{
+    [HarmonyPatch(typeof(Hediff_Pregnant), "Miscarry")]
+    public class Miscarry_Patch
+    {
+        public static void Postfix(Hediff_Pregnant __instance)
+        {
+            HediffComp_Menstruation comp = __instance.GetMenstruationCompFromPregnancy();
+            if (comp == null) return;
+            comp.Pregnancy = null;
+        }
+    }
+
+    [HarmonyPatch(typeof(Hediff_Pregnant), nameof(Hediff_Pregnant.StartLabor))]
+    public class StartLabor_Patch
+    {
+        public static void Postfix(Hediff_Pregnant __instance)
+        {
+            HediffComp_Menstruation comp = __instance.GetMenstruationCompFromPregnancy();
+            if (comp == null) return;
+            comp.Pregnancy = __instance.pawn.health.hediffSet.GetFirstHediffOfDef(HediffDefOf.PregnancyLabor);
+        }
+    }
+
+    [HarmonyPatch(typeof(Hediff_Labor), nameof(Hediff_Labor.PreRemoved))]
+    public class Labor_PreRemoved_Patch
+    {
+        public static void PostFix(Hediff_Labor __instance)
+        {
+            HediffComp_Menstruation comp = __instance.GetMenstruationCompFromPregnancy();
+            if (comp == null) return;
+            comp.Pregnancy = __instance.pawn.health.hediffSet.GetFirstHediffOfDef(HediffDefOf.PregnancyLaborPushing);
+        }
+    }
+
+    [HarmonyPatch(typeof(Hediff_LaborPushing), nameof(Hediff_LaborPushing.PreRemoved))]
+    public class LaborPushing_PreRemoved_Patch
+    {
+        public static void PostFix(Hediff_LaborPushing __instance)
+        {
+            HediffComp_Menstruation comp = __instance.GetMenstruationCompFromPregnancy();
+            if (comp == null) return;
+            comp.Pregnancy = null;
+        }
+    }
+}
\ No newline at end of file
diff --git a/1.4/source/RJW_Menstruation/RJW_Menstruation/RJW_Menstruation.csproj b/1.4/source/RJW_Menstruation/RJW_Menstruation/RJW_Menstruation.csproj
index 35f0a1c..22ab246 100644
--- a/1.4/source/RJW_Menstruation/RJW_Menstruation/RJW_Menstruation.csproj
+++ b/1.4/source/RJW_Menstruation/RJW_Menstruation/RJW_Menstruation.csproj
@@ -70,6 +70,7 @@
     <Compile Include="HediffComps\MenstruationUtility.cs" />
     <Compile Include="Hediff_Estrus.cs" />
     <Compile Include="IngestionOutcomeDoers.cs" />
+    <Compile Include="Patch\Biotech_Patch.cs" />
     <Compile Include="Patch\GC_Patch.cs" />
     <Compile Include="Recipe_Surgery.cs" />
     <Compile Include="StatParts.cs" />
diff --git a/changelogs.txt b/changelogs.txt
index 5734acd..63db02c 100644
--- a/changelogs.txt
+++ b/changelogs.txt
@@ -1,5 +1,6 @@
 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.
+ - Properly track biotech pregnancy through labor.
 
 Version 1.0.8.0
  - Support for RimWorld 1.4. All future changes to Menstruation will only be for Rimworld 1.4.