diff --git a/app/routes/record-vaccinations.js b/app/routes/record-vaccinations.js
index 5c2642e1..4769fab1 100644
--- a/app/routes/record-vaccinations.js
+++ b/app/routes/record-vaccinations.js
@@ -635,6 +635,10 @@ module.exports = router => {
     const data = req.session.data
     const pregnancyDueDate = dateFromYearMonthDay(data.pregnancyDueDate?.year, data.pregnancyDueDate?.month, data.pregnancyDueDate?.day)
 
+    if (!pregnancyDueDate) {
+      return res.render('record-vaccinations/rsv/not-yet-28-weeks-pregnant-warning')
+    }
+
     // Vaccination date is today
     const vaccinationDate = new Date()
 
@@ -656,6 +660,10 @@ module.exports = router => {
     const data = req.session.data
     const pregnancyDueDate = dateFromYearMonthDay(data.pregnancyDueDate?.year, data.pregnancyDueDate?.month, data.pregnancyDueDate?.day)
 
+    if (!pregnancyDueDate) {
+      return res.render('record-vaccinations/pertussis/not-yet-16-weeks-pregnant-warning')
+    }
+
     // Vaccination date is today
     const vaccinationDate = new Date()
 
diff --git a/app/views/record-vaccinations/pertussis/not-yet-16-weeks-pregnant-warning.html b/app/views/record-vaccinations/pertussis/not-yet-16-weeks-pregnant-warning.html
index a2f1968d..4e02ec42 100644
--- a/app/views/record-vaccinations/pertussis/not-yet-16-weeks-pregnant-warning.html
+++ b/app/views/record-vaccinations/pertussis/not-yet-16-weeks-pregnant-warning.html
@@ -19,19 +19,18 @@
       {% endif %}
 
       {% set panelHtml %}
-        {% set randomWeeks = (range(1, 15) | random) %}
         <p>
           {{ displayName }} is 
           {% if fullWeeksPregnant is defined and fullWeeksPregnant is not none %}
             {{ fullWeeksPregnant | plural("week") }}
           {% else %}
-            {{ randomWeeks }} week{{ 's' if randomWeeks > 1 }}
+            13 weeks
           {% endif %}
           {% if remainderDaysPregnant is defined and remainderDaysPregnant > 0 %} and {{ remainderDaysPregnant | plural("day") }}{% endif %} pregnant.
         </p>
         <p>The pertussis vaccine is recommended between 16 and 32 weeks of pregnancy.</p>
 
-        <p><a href="https://www.gov.uk/government/publications/vaccination-against-pertussis-whooping-cough-for-pregnant-women/pertussis-whooping-cough-vaccination-programme-for-pregnant-women" target="_blank">UKHSA guidance on pertussis vaccination of pregnant women (opens in new tab)</a>.</p>
+        <p>Check before going ahead or refer to a prescriber for a patient specific direction (PSD).</p>
 
         {{ button({
           "text": "Continue anyway",
@@ -49,4 +48,3 @@
     </div>
   </div>
 {% endblock %}
-
diff --git a/app/views/record-vaccinations/rsv/not-yet-28-weeks-pregnant-warning.html b/app/views/record-vaccinations/rsv/not-yet-28-weeks-pregnant-warning.html
index ddd77b5b..fbb55670 100644
--- a/app/views/record-vaccinations/rsv/not-yet-28-weeks-pregnant-warning.html
+++ b/app/views/record-vaccinations/rsv/not-yet-28-weeks-pregnant-warning.html
@@ -19,20 +19,19 @@
       {% endif %}
 
       {% set panelHtml %}
-        {% set randomWeeks = (range(1, 27) | random) %}
         <p>
           {{ displayName }} is 
           {% if fullWeeksPregnant is defined and fullWeeksPregnant is not none %}
             {{ fullWeeksPregnant | plural("week") }}
           {% else %}
-            {{ randomWeeks }} week{{ 's' if randomWeeks > 1 }}
+            13 weeks
           {% endif %}
           {% if remainderDaysPregnant is defined and remainderDaysPregnant > 0 %} and {{ remainderDaysPregnant | plural("day") }}{% endif %} pregnant.
         </p>
 
         <p>The RSV vaccine is not routinely recommended before 28 weeks of pregnancy.</p>
 
-        <p><a href="https://www.gov.uk/government/publications/respiratory-syncytial-virus-rsv-programme-information-for-healthcare-professionals/rsv-vaccination-of-pregnant-women-for-infant-protection-information-for-healthcare-practitioners" target="_blank">UKHSA guidance on RSV vaccination of pregnant women (opens in new tab)</a>.</p>
+        <p>Check before going ahead or refer to a prescriber for a patient specific direction (PSD).</p>
 
         {{ button({
           "text": "Continue anyway",
@@ -50,4 +49,3 @@
     </div>
   </div>
 {% endblock %}
-