diff --git a/app/models/case_log.rb b/app/models/case_log.rb
index 9e5f4e453..ec429c813 100644
--- a/app/models/case_log.rb
+++ b/app/models/case_log.rb
@@ -3,9 +3,9 @@ class CaseLogValidator < ActiveModel::Validator
   # followed by field name this is how the metaprogramming of the method
   # name being call in the validate method works.
 
-  def validate_tenant_age(record)
-    if record.tenant_age && !/^[1-9][0-9]?$|^120$/.match?(record.tenant_age.to_s)
-      record.errors.add :tenant_age, "Tenant age must be between 0 and 120"
+  def validate_person_1_age(record)
+    if record.person_1_age && !/^[1-9][0-9]?$|^120$/.match?(record.person_1_age.to_s)
+      record.errors.add :person_1_age, "Tenant age must be between 0 and 120"
     end
   end
 
@@ -56,7 +56,6 @@ class CaseLogValidator < ActiveModel::Validator
   end
 
   def validate_armed_forces_active_response(record)
-    # binding.pry
     if record.armed_forces == "Yes - a regular" && record.armed_forces_active.blank?
       record.errors.add :armed_forces_active, "You must answer the armed forces active question if the tenant has served as a regular in the armed forces"
     end
@@ -66,6 +65,12 @@ 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 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
@@ -82,6 +87,16 @@ class CaseLogValidator < ActiveModel::Validator
       validation_methods.each { |meth| public_send(meth, record) }
     end
   end
+
+private
+
+  def women_of_child_bearing_age_in_household(record)
+    (1..8).any? do |n|
+      next if record["person_#{n}_gender"].nil? || record["person_#{n}_age"].nil?
+
+      record["person_#{n}_gender"] == "Female" && record["person_#{n}_age"] >= 16 && record["person_#{n}_age"] <= 50
+    end
+  end
 end
 
 class CaseLog < ApplicationRecord
diff --git a/config/forms/2021_2022.json b/config/forms/2021_2022.json
index 1d2d72b57..e658da607 100644
--- a/config/forms/2021_2022.json
+++ b/config/forms/2021_2022.json
@@ -21,11 +21,11 @@
                 }
               }
             },
-            "tenant_age": {
+            "person_1_age": {
               "header": "",
               "description": "",
               "questions": {
-                "tenant_age": {
+                "person_1_age": {
                   "check_answer_label": "Tenant's age",
                   "header": "What is the tenant's age?",
                   "hint_text": "",
@@ -36,11 +36,11 @@
                 }
               }
             },
-            "tenant_gender": {
+            "person_1_gender": {
               "header": "",
               "description": "",
               "questions": {
-                "tenant_gender": {
+                "person_1_gender": {
                   "check_answer_label": "Tenant's gender",
                   "header": "Which of these best describes the tenant's gender identity?",
                   "hint_text": "",
diff --git a/db/migrate/20211026123542_change_to_person1_gender_age.rb b/db/migrate/20211026123542_change_to_person1_gender_age.rb
new file mode 100644
index 000000000..1d0e90e17
--- /dev/null
+++ b/db/migrate/20211026123542_change_to_person1_gender_age.rb
@@ -0,0 +1,8 @@
+class ChangeToPerson1GenderAge < ActiveRecord::Migration[6.1]
+  def change
+    change_table :case_logs, bulk: true do |t|
+      t.rename :tenant_age, :person_1_age
+      t.rename :tenant_gender, :person_1_gender
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 20dbfc383..2d4f30da1 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_10_15_090040) do
+ActiveRecord::Schema.define(version: 2021_10_26_123542) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -20,8 +20,8 @@ ActiveRecord::Schema.define(version: 2021_10_15_090040) do
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
     t.string "tenant_code"
-    t.integer "tenant_age"
-    t.string "tenant_gender"
+    t.integer "person_1_age"
+    t.string "person_1_gender"
     t.string "tenant_ethnic_group"
     t.string "tenant_nationality"
     t.string "previous_housing_situation"
diff --git a/docs/api/DLUHC-CORE-Data.v1.json b/docs/api/DLUHC-CORE-Data.v1.json
index 374c30bfb..a62d1f184 100644
--- a/docs/api/DLUHC-CORE-Data.v1.json
+++ b/docs/api/DLUHC-CORE-Data.v1.json
@@ -388,13 +388,13 @@
             "type": "string",
             "minLength": 1
           },
-          "tenant_age": {
+          "person_1_age": {
             "type": "number",
             "description": "The age of the lead tenant",
             "maximum": 120,
             "minimum": 0
           },
-          "tenant_gender": {
+          "person_1_gender": {
             "type": "string",
             "minLength": 1,
             "enum": [
@@ -1086,8 +1086,8 @@
         },
         "required": [
           "tenant_code",
-          "tenant_age",
-          "tenant_gender",
+          "person_1_age",
+          "person_1_gender",
           "tenant_ethnic_group",
           "tenant_nationality",
           "previous_housing_situation",
diff --git a/spec/factories/case_log.rb b/spec/factories/case_log.rb
index 044a4cbac..6e5960329 100644
--- a/spec/factories/case_log.rb
+++ b/spec/factories/case_log.rb
@@ -6,7 +6,7 @@ FactoryBot.define do
       tenant_code { "TH356" }
       property_postcode { "SW2 6HI" }
       previous_postcode { "P0 5ST" }
-      tenant_age { "12" }
+      person_1_age { "12" }
     end
     trait :completed do
       status { 2 }
diff --git a/spec/features/case_log_spec.rb b/spec/features/case_log_spec.rb
index 3e16f8530..587fc80f1 100644
--- a/spec/features/case_log_spec.rb
+++ b/spec/features/case_log_spec.rb
@@ -7,8 +7,8 @@ RSpec.describe "Test Features" do
 
   question_answers = {
     tenant_code: { type: "text", answer: "BZ737" },
-    tenant_age: { type: "numeric", answer: 25 },
-    tenant_gender: { type: "radio", answer: "Female" },
+    person_1_age: { type: "numeric", answer: 25 },
+    person_1_gender: { type: "radio", answer: "Female" },
     household_number_of_other_members: { type: "numeric", answer: 2 },
   }
 
@@ -93,9 +93,52 @@ 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",
+                            person_1_gender: "Male",
+                            person_1_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",
+                            person_1_gender: "Female",
+                            person_1_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",
+                            person_1_gender: "Male",
+                            person_1_age: 20)
+          }.to raise_error(ActiveRecord::RecordInvalid)
+        end
+
+        it "Can answer yes if valid tenants" do
+          expect {
+            CaseLog.create!(pregnancy: "Yes",
+                            person_1_gender: "Female",
+                            person_1_age: 20)
+          }.not_to raise_error
+        end
+
+        it "Can answer yes if valid second tenant" do
+          expect {
+            CaseLog.create!(pregnancy: "Yes",
+                            person_1_gender: "Male", person_1_age: 99,
+                            person_2_gender: "Female",
+                            person_2_age: 20)
+          }.not_to raise_error
+        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")
+        visit("/case_logs/#{id}/person_1_age")
+        expect(page).to have_field("case-log-person-1-age-field")
       end
 
       it "updates model attributes correctly for each question" do
@@ -140,8 +183,8 @@ RSpec.describe "Test Features" do
       end
 
       it "displays text answers in inputs if they are already saved" do
-        visit("/case_logs/#{id}/tenant_age")
-        expect(page).to have_field("case-log-tenant-age-field", with: "12")
+        visit("/case_logs/#{id}/person_1_age")
+        expect(page).to have_field("case-log-person-1-age-field", with: "12")
       end
 
       it "displays checkbox answers in inputs if they are already saved" do
@@ -173,7 +216,7 @@ RSpec.describe "Test Features" do
       it "go back to tenant code page from tenant age page", js: true do
         visit("/case_logs/#{id}/tenant_code")
         click_button("Save and continue")
-        visit("/case_logs/#{id}/tenant_age")
+        visit("/case_logs/#{id}/person_1_age")
         click_link(text: "Back")
         expect(page).to have_field("case-log-tenant-code-field")
       end
@@ -218,8 +261,8 @@ RSpec.describe "Test Features" do
       end
 
       it "should display answers given by the user for the question in the subsection" do
-        fill_in_number_question(empty_case_log.id, "tenant_age", 28)
-        choose("case-log-tenant-gender-non-binary-field")
+        fill_in_number_question(empty_case_log.id, "person_1_age", 28)
+        choose("case-log-person-1-gender-non-binary-field")
         click_button("Save and continue")
         visit("/case_logs/#{empty_case_log.id}/#{subsection}/check_answers")
         expect(page).to have_content("28")
@@ -230,15 +273,15 @@ RSpec.describe "Test Features" do
         visit("case_logs/#{empty_case_log.id}/#{subsection}/check_answers")
         assert_selector "a", text: /Answer\z/, count: 4
         assert_selector "a", text: "Change", count: 0
-        expect(page).to have_link("Answer", href: "/case_logs/#{empty_case_log.id}/tenant_age")
+        expect(page).to have_link("Answer", href: "/case_logs/#{empty_case_log.id}/person_1_age")
       end
 
       it "should have a change link for answered questions" do
-        fill_in_number_question(empty_case_log.id, "tenant_age", 28)
+        fill_in_number_question(empty_case_log.id, "person_1_age", 28)
         visit("/case_logs/#{empty_case_log.id}/#{subsection}/check_answers")
         assert_selector "a", text: /Answer\z/, count: 3
         assert_selector "a", text: "Change", count: 1
-        expect(page).to have_link("Change", href: "/case_logs/#{empty_case_log.id}/tenant_age")
+        expect(page).to have_link("Change", href: "/case_logs/#{empty_case_log.id}/person_1_age")
       end
 
       it "should have a link pointing to the first question if no questions are answered" do
@@ -317,19 +360,19 @@ RSpec.describe "Test Features" do
   describe "Question validation" do
     context "given an invalid tenant age" do
       it " of less than 0 it shows validation" do
-        visit("/case_logs/#{id}/tenant_age")
-        fill_in_number_question(empty_case_log.id, "tenant_age", -5)
+        visit("/case_logs/#{id}/person_1_age")
+        fill_in_number_question(empty_case_log.id, "person_1_age", -5)
         expect(page).to have_selector("#error-summary-title")
-        expect(page).to have_selector("#case-log-tenant-age-error")
-        expect(page).to have_selector("#case-log-tenant-age-field-error")
+        expect(page).to have_selector("#case-log-person-1-age-error")
+        expect(page).to have_selector("#case-log-person-1-age-field-error")
       end
 
       it " of greater than 120 it shows validation" do
-        visit("/case_logs/#{id}/tenant_age")
-        fill_in_number_question(empty_case_log.id, "tenant_age", 121)
+        visit("/case_logs/#{id}/person_1_age")
+        fill_in_number_question(empty_case_log.id, "person_1_age", 121)
         expect(page).to have_selector("#error-summary-title")
-        expect(page).to have_selector("#case-log-tenant-age-error")
-        expect(page).to have_selector("#case-log-tenant-age-field-error")
+        expect(page).to have_selector("#case-log-person-1-age-error")
+        expect(page).to have_selector("#case-log-person-1-age-field-error")
       end
     end
   end
@@ -363,8 +406,8 @@ RSpec.describe "Test Features" do
     end
 
     it "can route based on multiple conditions" do
-      visit("/case_logs/#{id}/tenant_gender")
-      choose("case-log-tenant-gender-female-field", allow_label_click: true)
+      visit("/case_logs/#{id}/person_1_gender")
+      choose("case-log-person-1-gender-female-field", allow_label_click: true)
       click_button("Save and continue")
       visit("/case_logs/#{id}/conditional_question")
       choose("case-log-pregnancy-yes-field", allow_label_click: true)
diff --git a/spec/fixtures/complete_case_log.json b/spec/fixtures/complete_case_log.json
index 195de85f5..8a539e91c 100644
--- a/spec/fixtures/complete_case_log.json
+++ b/spec/fixtures/complete_case_log.json
@@ -2,8 +2,8 @@
   "case_log":
     {
       "tenant_code": "T657",
-      "tenant_age": 35,
-      "tenant_gender": "Female",
+      "person_1_age": 35,
+      "person_1_gender": "Female",
       "tenant_ethnic_group": "White: English/Scottish/Welsh/Northern Irish/British",
       "tenant_nationality": "UK national resident in UK",
       "previous_housing_situation": "Private sector tenancy",
diff --git a/spec/fixtures/forms/test_form.json b/spec/fixtures/forms/test_form.json
index f5bd9cb48..35590cb3e 100644
--- a/spec/fixtures/forms/test_form.json
+++ b/spec/fixtures/forms/test_form.json
@@ -16,9 +16,9 @@
                 }
               }
             },
-            "tenant_age": {
+            "person_1_age": {
               "questions": {
-                "tenant_age": {
+                "person_1_age": {
                   "check_answer_label": "Tenant's age",
                   "header": "What is the tenant's age?",
                   "type": "numeric",
@@ -28,9 +28,9 @@
                 }
               }
             },
-            "tenant_gender": {
+            "person_1_gender": {
               "questions": {
-                "tenant_gender": {
+                "person_1_gender": {
                   "check_answer_label": "Tenant's gender",
                   "header": "Which of these best describes the tenant's gender identity?",
                   "type": "radio",
@@ -252,7 +252,7 @@
                 }
               },
               "conditional_route_to": {
-                "rent": { "pregnancy": "Yes", "tenant_gender": "Female" },
+                "rent": { "pregnancy": "Yes", "person_1_gender": "Female" },
                 "conditional_question_yes_page": { "pregnancy": "Yes" },
                 "conditional_question_no_page": { "pregnancy": "No" }
               },
diff --git a/spec/helpers/check_answers_helper_spec.rb b/spec/helpers/check_answers_helper_spec.rb
index cac582f93..3eae2227c 100644
--- a/spec/helpers/check_answers_helper_spec.rb
+++ b/spec/helpers/check_answers_helper_spec.rb
@@ -155,7 +155,7 @@ RSpec.describe CheckAnswersHelper do
 
         it "it includes conditional pages and questions that were displayed" do
           case_log["pregnancy"] = "Yes"
-          case_log["tenant_gender"] = "Female"
+          case_log["person_1_gender"] = "Female"
           result = total_questions(conditional_routing_subsection, case_log, form)
           expected_keys = %w[pregnancy]
           expect(result.keys).to match_array(expected_keys)
diff --git a/spec/models/case_log_spec.rb b/spec/models/case_log_spec.rb
index 3907a8176..1fbfc8165 100644
--- a/spec/models/case_log_spec.rb
+++ b/spec/models/case_log_spec.rb
@@ -3,15 +3,15 @@ require "rails_helper"
 RSpec.describe Form, type: :model do
   describe "#new" do
     it "validates age is a number" do
-      expect { CaseLog.create!(tenant_age: "random") }.to raise_error(ActiveRecord::RecordInvalid)
+      expect { CaseLog.create!(person_1_age: "random") }.to raise_error(ActiveRecord::RecordInvalid)
     end
 
     it "validates age is under 120" do
-      expect { CaseLog.create!(tenant_age: 121) }.to raise_error(ActiveRecord::RecordInvalid)
+      expect { CaseLog.create!(person_1_age: 121) }.to raise_error(ActiveRecord::RecordInvalid)
     end
 
     it "validates age is over 0" do
-      expect { CaseLog.create!(tenant_age: 0) }.to raise_error(ActiveRecord::RecordInvalid)
+      expect { CaseLog.create!(person_1_age: 0) }.to raise_error(ActiveRecord::RecordInvalid)
     end
 
     it "validates number of relets is a number" do
diff --git a/spec/models/form_spec.rb b/spec/models/form_spec.rb
index b26e2014c..f11431c8b 100644
--- a/spec/models/form_spec.rb
+++ b/spec/models/form_spec.rb
@@ -5,9 +5,9 @@ RSpec.describe Form, type: :model do
   let(:form) { form_handler.get_form("test_form") }
 
   describe ".next_page" do
-    let(:previous_page) { "tenant_age" }
+    let(:previous_page) { "person_1_age" }
     it "returns the next page given the previous" do
-      expect(form.next_page(previous_page)).to eq("tenant_gender")
+      expect(form.next_page(previous_page)).to eq("person_1_gender")
     end
   end
 
@@ -20,7 +20,7 @@ RSpec.describe Form, type: :model do
 
   describe ".previous_page" do
     context "given a page in the middle of a subsection" do
-      let(:current_page) { "tenant_age" }
+      let(:current_page) { "person_1_age" }
       it "returns the previous page given the current" do
         expect(form.previous_page(current_page)).to eq("tenant_code")
       end
diff --git a/spec/requests/case_log_controller_spec.rb b/spec/requests/case_log_controller_spec.rb
index 89a5592b4..e6c866c90 100644
--- a/spec/requests/case_log_controller_spec.rb
+++ b/spec/requests/case_log_controller_spec.rb
@@ -24,7 +24,7 @@ RSpec.describe CaseLogsController, type: :request do
 
   describe "POST #create" do
     let(:tenant_code) { "T365" }
-    let(:tenant_age) { 35 }
+    let(:person_1_age) { 35 }
     let(:property_number_of_times_relet) { 12 }
     let(:property_postcode) { "SE11 6TY" }
     let(:in_progress) { "in_progress" }
@@ -33,7 +33,7 @@ RSpec.describe CaseLogsController, type: :request do
     let(:params) do
       {
         "tenant_code": tenant_code,
-        "tenant_age": tenant_age,
+        "person_1_age": person_1_age,
         "property_postcode": property_postcode,
         "property_number_of_times_relet": property_number_of_times_relet,
       }
@@ -55,18 +55,18 @@ RSpec.describe CaseLogsController, type: :request do
     it "creates a case log with the values passed" do
       json_response = JSON.parse(response.body)
       expect(json_response["tenant_code"]).to eq(tenant_code)
-      expect(json_response["tenant_age"]).to eq(tenant_age)
+      expect(json_response["person_1_age"]).to eq(person_1_age)
       expect(json_response["property_postcode"]).to eq(property_postcode)
     end
 
     context "invalid json params" do
-      let(:tenant_age) { 2000 }
+      let(:person_1_age) { 2000 }
       let(:property_number_of_times_relet) { 21 }
 
       it "validates case log parameters" do
         json_response = JSON.parse(response.body)
         expect(response).to have_http_status(:unprocessable_entity)
-        expect(json_response["errors"]).to match_array([["property_number_of_times_relet", ["Must be between 0 and 20"]], ["tenant_age", ["Tenant age must be between 0 and 120"]]])
+        expect(json_response["errors"]).to match_array([["property_number_of_times_relet", ["Must be between 0 and 20"]], ["person_1_age", ["Tenant age must be between 0 and 120"]]])
       end
     end
 
@@ -149,7 +149,7 @@ RSpec.describe CaseLogsController, type: :request do
     end
 
     context "invalid case log params" do
-      let(:params) { { tenant_age: 200 } }
+      let(:params) { { person_1_age: 200 } }
 
       it "returns 422" do
         expect(response).to have_http_status(:unprocessable_entity)
@@ -157,7 +157,7 @@ RSpec.describe CaseLogsController, type: :request do
 
       it "returns an error message" do
         json_response = JSON.parse(response.body)
-        expect(json_response["errors"]).to eq({ "tenant_age" => ["Tenant age must be between 0 and 120"] })
+        expect(json_response["errors"]).to eq({ "person_1_age" => ["Tenant age must be between 0 and 120"] })
       end
     end