diff --git a/app/models/case_log.rb b/app/models/case_log.rb
index 1f8743b9f..4bc71db3f 100644
--- a/app/models/case_log.rb
+++ b/app/models/case_log.rb
@@ -49,6 +49,31 @@ class CaseLogValidator < ActiveModel::Validator
     end
   end
 
+  def validate_household_pregnancy(record)
+    if (record.pregnancy == "Yes" || record.pregnancy == "Prefer not to say") && !women_of_child_bearing_age_in_household(record)
+      record.errors.add :pregnancy, "You must answer no as there are no female tenants aged 16-50 in the property"
+    end
+  end
+
+  def women_of_child_bearing_age_in_household(record)
+    unless record.tenant_gender.nil? || record.tenant_age.nil?
+      if record.tenant_gender == "Female" && record.tenant_age >= 16 && record.tenant_age <= 50
+        return true
+      end
+    end
+
+    p = 2
+    while p <= 8
+      unless record["person_#{p}_gender"].nil? || record["person_#{p}_age"].nil?
+        if record["person_#{p}_gender"] == "Female" && record["person_#{p}_age"] >= 16 && record["person_#{p}_age"] <= 50
+          return true
+        end
+      end
+      p += 1
+    end
+    return false
+  end
+
   def validate(record)
     # If we've come from the form UI we only want to validate the specific fields
     # that have just been submitted. If we're submitting a log via API or Bulk Upload
diff --git a/spec/features/case_log_spec.rb b/spec/features/case_log_spec.rb
index 3e16f8530..e915e97a6 100644
--- a/spec/features/case_log_spec.rb
+++ b/spec/features/case_log_spec.rb
@@ -93,6 +93,38 @@ RSpec.describe "Test Features" do
         )
       end
 
+      context "Validate pregnancy questions" do
+        it "Cannot answer yes if no female tenants" do
+          expect {
+            CaseLog.create!(pregnancy: "Yes", tenant_gender: "Male", tenant_age: 20)
+          }.to raise_error(ActiveRecord::RecordInvalid)
+        end
+
+        it "Cannot answer yes if no female tenants within age range" do
+          expect {
+            CaseLog.create!(pregnancy: "Yes", tenant_gender: "Female", tenant_age: 51)
+          }.to raise_error(ActiveRecord::RecordInvalid)
+        end
+
+        it "Cannot answer prefer not to say if no valid tenants" do
+          expect {
+            CaseLog.create!(pregnancy: "Prefer not to say", tenant_gender: "Male", tenant_age: 20)
+          }.to raise_error(ActiveRecord::RecordInvalid)
+        end
+
+        # it "Can answer yes if valid tenants" do
+        #   expect {
+        #     CaseLog.create!(pregnancy: "Yes", tenant_gender: "Female", tenant_age: 20)
+        #   }.to raise_error(ActiveRecord::RecordInvalid)
+        # end
+
+        # it "Can answer yes if valid second tenant" do
+        #   expect {
+        #     CaseLog.create!(pregnancy: "Yes", tenant_gender: "Male", tenant_age: 99, person_2_gender: "Female", person_2_age: 20)
+        #   }.to raise_error(ActiveRecord::RecordInvalid)
+        # end
+      end
+
       it "can be accessed by url" do
         visit("/case_logs/#{id}/tenant_age")
         expect(page).to have_field("case-log-tenant-age-field")