diff --git a/1.4/Assemblies/RJW_Menstruation.dll b/1.4/Assemblies/RJW_Menstruation.dll
index f289122..6a5f83d 100644
Binary files a/1.4/Assemblies/RJW_Menstruation.dll and b/1.4/Assemblies/RJW_Menstruation.dll differ
diff --git a/1.4/source/RJW_Menstruation/RJW_Menstruation/Hediff_MultiplePregnancy.cs b/1.4/source/RJW_Menstruation/RJW_Menstruation/Hediff_MultiplePregnancy.cs
index 119613e..b559221 100644
--- a/1.4/source/RJW_Menstruation/RJW_Menstruation/Hediff_MultiplePregnancy.cs
+++ b/1.4/source/RJW_Menstruation/RJW_Menstruation/Hediff_MultiplePregnancy.cs
@@ -398,7 +398,8 @@ namespace RJW_Menstruation
                 //fixedIdeo: mother.Ideo,
                 forbidAnyTitle: true,
                 forceNoBackstory: true,
-                forcedEndogenes: PregnancyUtility.GetInheritedGenes(father, mother)
+                forcedEndogenes: PregnancyUtility.GetInheritedGenes(father, mother),
+                forcedXenotype: ModsConfig.BiotechActive ? XenotypeDefOf.Baseliner : null
                 );
 
             int division = 1;
@@ -634,8 +635,8 @@ namespace RJW_Menstruation
             }
             XenotypeDef motherInheritableXenotype = mother?.genes?.Xenotype;
             XenotypeDef fatherInheritableXenotype = father?.genes?.Xenotype;
-            if (!motherInheritableXenotype.inheritable) motherInheritableXenotype = null;
-            if (!fatherInheritableXenotype.inheritable) fatherInheritableXenotype = null;
+            if (!(motherInheritableXenotype?.inheritable ?? false)) motherInheritableXenotype = null;
+            if (!(fatherInheritableXenotype?.inheritable ?? false)) fatherInheritableXenotype = null;
 
             // If they're the same (or both null)
             if (motherInheritableXenotype == fatherInheritableXenotype)
diff --git a/About/Manifest.xml b/About/Manifest.xml
index 84c2a83..72e60db 100644
--- a/About/Manifest.xml
+++ b/About/Manifest.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <Manifest>
 	<identifier>RJW Menstruation</identifier>
-	<version>1.0.8.3</version>
+	<version>1.0.8.4</version>
 	<dependencies>
 	</dependencies>
 	<incompatibleWith />
diff --git a/changelogs.txt b/changelogs.txt
index cfa0841..45b5b39 100644
--- a/changelogs.txt
+++ b/changelogs.txt
@@ -1,3 +1,6 @@
+Version 1.0.8.4
+ - Newborns should now be baseliners if there are no xenotypes to inherit.
+
 Version 1.0.8.3
  - Compatibility update for RJW 5.3.0.9
  - Requires RJW 5.3.0.9